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iHeartPodcasts

Join Holly and Tracy as they bring you the greatest and strangest Stuff You Missed In History Class in this podcast by iHeartRadio.

Stuff You Missed in History Class

This 2023 episode covers scarlet fever, which is treatable with antibiotics. But in the middle of the 19th century, it was the leading cause of death in children in parts of the world, and today, there are several ongoing mysteries about the disease.

See omnystudio.com/listener for privacy information.

SYMHC Classics: Scarlet fever

Tracy shares her irritation with word use in a recent government report. There is also discussion of strangers visiting manor houses.

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Behind the Scenes Minis: Problematized

The wrap up of things unearthed in the second quarter of 2026 includes the potpourri category, lots of books and letters, shipwrecks, and neanderthals. 
 
Research:
 
 • Addley, Esther. “Solstice-aligned 5,000-year-old monument ‘once in a lifetime find’, say archaeologists.” The Guardian. 6/17/2026. https://www.theguardian.com/uk-news/2026/jun/18/solstice-aligned-monument-archaeology-wiltshire-stonehenge-prototype
 • Anderson, Sonja. “These 600-Year-Old Chinese Surgical Instruments Are Coated in an Early Local Anesthetic—Carefully Extracted From a Poisonous Plant.” Smithsonian. 5/29/2026. https://www.smithsonianmag.com/smart-news/these-600-year-old-chinese-surgical-instruments-are-coated-in-an-early-local-anestheticcarefully-extracted-from-a-poisonous-plant-180988865/
 • Archaeology Magazine. “Copper Part From Illicit 19th Century Still Discovered in Scotland.” 5/12/2026. https://archaeology.org/news/2026/05/12/copper-part-from-illicit-19th-century-still-discovered-in-scotland/
 • Associated Press Copenhagen. “Archaeologists discover wreck of Danish warship sunk by Nelson 225 years ago.” The Guardian. 4/2/2026. https://www.theguardian.com/science/2026/apr/02/archaeologists-discover-wreck-danish-warship-sunk-admiral-nelson
 • Bassi, Margherita. “After Nearly 80 Years of Doubt, Scientists Say a Spear Lodged Between Elephant Ribs Offers Evidence That Neanderthals Hunted Big Game.” Smithsonian. 4/10/2026. https://www.smithsonianmag.com/smart-news/after-nearly-80-years-of-doubt-scientists-say-a-spear-lodged-between-elephant-ribs-offers-evidence-that-neanderthals-hunted-big-game-180988522/
 • Baum, Stephanie and Robert Egan. “Bolivian mummy rewrites scarlet fever's past, suggesting killer bacterium circulated centuries before colonization.” EurekAlert. 4/15/2026. https://phys.org/news/2026-04-bolivian-mummy-rewrites-scarlet-fever.html
 • Blackwood, Emma. “Baby fossils reveal link between human and Neanderthal development.” University of Queensland. Via EurekAlert. 6/19/2026. https://www.eurekalert.org/news-releases/1132850
 • Blair, Elizabeth. “Decades-old, newly restored Smithsonian carousel reopens — to children’s delight.” WAMU. 4/25/2026. https://wamu.org/story/26/04/25/decades-old-newly-restored-smithsonian-carousel-reopens-to-childrens-delight/
 • Blake, Elissa. “New evidence reveals a millennium-old dingo was ritually buried, and cared for, along the Darling (Baaka) River in Australia.” University of Sydney. Via EurekAlert. 5/18/2026. https://www.eurekalert.org/news-releases/1128408
 • Cerino, Marco. “Appeals court clears Trump's path to alter Philadelphia slavery exhibit at historic site.” Philadelphia Tribune. 6/18/2026. https://www.phillytrib.com/news/local_news/appeals-court-clears-trumps-path-to-alter-philadelphia-slavery-exhibit-at-historic-site/article_8ac83e65-6a6d-4db1-91c4-074f98c96a74.html?utm_medium=social&utm_source=email&utm_campaign=user-share
 • Clark, Gaby. “Climate and competition alone cannot explain Neanderthal extinction, study finds.” Phys.org. 4/23/2026. https://phys.org/news/2026-04-climate-competition-neanderthal-extinction.html
 • Clark, Gaby. “Did Neanderthals use rhinoceros teeth as tools?” Phys.org. 6/18/2026. https://phys.org/news/2026-06-neanderthals-rhinoceros-teeth-tools.html
 • Clark, Gaby. “Nondestructive DNA sampling reveals 1,300 years of secrets in historic parchments.” Phys.org. 5/18/2026. https://phys.org/news/2026-05-nondestructive-dna-sampling-reveals-years.html
 • Clark, Gaby. “Surprising diversity found among Europe's last Neanderthals.” Leiden University. Via Phys.org. 6/24/2026. https://phys.org/news/2026-06-diversity-europe-neanderthals.html
 • Cummings, Mike. “Medici brothers' remains reveal Renaissance-era malaria strains, closing the book on a murder mystery.” Phys.org. 6/30/2026. https://phys.org/news/2026-06-medici-brothers-reveal-renaissance-era.html
 • Defranceschi, Laura. “Ötzi and his microbiome: a 5,300-year-old relationship.” Eurac Research. Via EurekAlert. 6/2/2026. https://www.eurekalert.org/news-releases/1129908
 • Dungate, Joanna. “Shakespeare’s ‘missing’ London house mapped with new discovery.” Kings College London. Via EurekAlert. 4/15/2026. https://www.eurekalert.org/news-releases/1123989
 • Egan, Robert. “Neanderthal dentists used stone drills to treat cavities nearly 60,000 years ago, ancient molar suggests.” Phys.org. 5/13/2026. https://phys.org/news/2026-05-neanderthal-dentists-stone-drills-cavities.html
 • Egan, Robert. “Stonehenge Altar Stone's epic transportation across ancient Britain detailed in new study.” Curtin University. Via Phys.org. 6/4/2026. https://phys.org/news/2026-06-stonehenge-altar-stone-epic-ancient.html
 • Ellenby, Danielle. “Medieval Japanese poetry and buried trees help elucidate volatile space weather.” EurekAlert. 4/9/2026. https://www.eurekalert.org/news-releases/1123008
 • Forbes, Ellie. “Archaeologists discover unexploded mortar shell at Culloden Battlefield.” Scottish Field. 4/14/2026. https://www.scottishfield.co.uk/news/archaeologists-discover-unexploded-mortar-shell-at-culloden-battlefield/
 • Harley, Sadie and Robert Egan. “Ancient chicken bones reveal human management in Korea 2,000 years ago.” Phys.org. 4/22/2026. https://phys.org/news/2026-04-ancient-chicken-bones-reveal-human.html
 • Jones, Sam. “Hidden treasures: Spanish archaeologists discover trove of ancient shipwrecks in Bay of Gibraltar.” The Guardian. 4/15/2026. https://www.theguardian.com/science/2026/apr/15/hidden-treasures-spanish-archaeologists-discover-trove-of-ancient-shipwrecks-in-bay-of-gibraltar
 • Kuta, Sarah. “A Shipwreck, but Make It Fashion: Researchers Transformed Wooden Fragments From a 17th-Century Shipwreck Into a Pair of Stylish Maxi Dresses.” Smithsonian. 5/26/2026. https://www.smithsonianmag.com/smart-news/a-shipwreck-but-make-it-fashion-researchers-transformed-wooden-fragments-from-a-17th-century-shipwreck-into-a-pair-of-stylish-maxi-dresses-180988825/
 • Kuta, Sarah. “Archaeologists Discover Evidence That a Wooden Prototype for Stonehenge May Have Aligned With the Solstice 500 Years Before the Stone Circle.” Smithsonian. 6/19/2026. https://www.smithsonianmag.com/smart-news/archaeologists-discover-evidence-a-wooden-prototype-for-stonehenge-may-have-aligned-with-the-solstice-500-years-before-the-stone-circle-180988988/
 • Kuta, Sarah. “Did Homo Sapiens Really Outsmart Neanderthals? Different Skull Shapes Didn’t Necessarily Mean Unequal Brain Capacity, New Research Shows.” Smithsonian. 5/13/2026. https://www.smithsonianmag.com/smart-news/did-homo-sapiens-really-outsmart-neanderthals-different-skull-shapes-didnt-necessarily-mean-unequal-brain-capacity-new-research-shows-180988738/
 • Kuta, Sarah. “Did Homo Sapiens Really Outsmart Neanderthals? Different Skull Shapes Didn’t Necessarily Mean Unequal Brain Capacity, New Research Shows.” Smithsonian. 5/13/2026. https://www.smithsonianmag.com/smart-news/did-homo-sapiens-really-outsmart-neanderthals-different-skull-shapes-didnt-necessarily-mean-unequal-brain-capacity-new-research-shows-180988738/
 • Kuta, Sarah. “Potatoes Didn’t Just Feed Ancient Indigenous Communities in the Andes—the Tasty Tubers Also Reshaped People’s DNA.” Smithsonain. 5/12/2026. https://www.smithsonianmag.com/smart-news/potatoes-didnt-just-feed-ancient-indigenous-communities-in-the-andes-the-tasty-tubers-also-reshaped-peoples-dna-180988732/
 • Kuta, Sarah. “This American Submarine Lost During WWII—Along With 83 Crew Members—Has Been Discovered in the Pacific Ocean.” Smithsonian. 6/3/2026. https://www.smithsonianmag.com/smart-news/this-american-submarine-USS-Herring-lost-during-WWII-along-with-83-crew-members-has-been-discovered-in-the-pacific-ocean-180988895/
 • Kuta, Sarah. “Turtles May Have Been Tasty Snacks for Neanderthals 125,000 Years Ago. But Their Shells Were Probably the Real Prize.” Smithsonian. 4/15/2026. https://www.smithsonianmag.com/smart-news/turtles-may-have-been-tasty-snacks-for-neanderthals-125000-years-ago-but-their-shells-were-probably-the-real-prize-180988550/
 • Kuta, Sarah. “What Killed the Neanderthals? New Research Suggests a Lack of Genetic Diversity May Be Partially to Blame.” Smithsonian. 4/24/2026. https://www.smithsonianmag.com/smart-news/what-killed-the-neanderthals-new-research-suggests-a-lack-of-genetic-diversity-may-be-partially-to-blame-180988612/
 • Lakowski, Amy. “Digging for Remnants of the Battle of Bunker Hill.” Bostonia. Boston University’s Alumni Magazine. 6/22/2026. https://www.bu.edu/articles/2026/digging-for-remnants-battle-of-bunker-hill/
 • Lawson-Tancred, Jo. “The Sagrada Familia Will Finally Be Completed in 2026. The Last Challenge? Demolishing the Homes of Some 3,000 Local Residents.” ArtNet. 2/13/2023. https://news.artnet.com/art-world/sagrada-familia-2026-local-residents-2254826
 • Lock, Lisa and Robert Egan. “Ancient curse tablet bears rare Greek inscription with binding spell intended to harm enemies.” Phys.org. 6/17/2026. https://phys.org/news/2026-06-ancient-curse-tablet-rare-greek.html
 • Lu, Donna. “Signs of ‘feeding’ ritual at dingo burial site shed new light on bond between First Nations people and canines.” The Guardian. 5/18/2026. https://www.theguardian.com/science/2026/may/19/dingo-burial-site-first-nations-people-relationship-to-animals
 • net. “Lost Writings of Saint Augustine Found in Medieval Manuscript.” 6/2026. https://www.medievalists.net/2026/06/lost-writings-of-saint-augustine-found-in-medieval-manuscript/
 • net. “Secret Letter Detailing Late Medieval Britain Fully Decoded.” https://www.medievalists.net/2026/04/secret-letter-detailing-late-medieval-britain-fully-decoded/
 • Mehrtens, Michelle. “A Young Black Girl Was the First to Desegregate a Maryland Carousel in the 1960s. Now, the Historic Merry-Go-Round Will Entertain Visitors on the National Mall.” Smithsonian. 4/22/2026. https://www.smithsonianmag.com/smithsonian-institution/a-young-black-girl-was-the-first-to-desegregate-a-maryland-carousel-in-the-1960s-now-the-historic-merry-go-round-will-entertain-visitors-on-the-national-mall-180988596/
 • Mondal, Sanjukta. “Scraped from ancient Roman toilets, these crusted remains expose a pathogen found far earlier than expected.” Phys.org. 4/23/2026. https://phys.org/news/2026-04-ancient-roman-toilets-crusted-expose.html
 • Moreau, Didier and Julie Louis. “Thirty previously unpublished verses by Empedocles discovered on a papyrus from Cairo.” University of Liege. Via EurekAlert. 4/1/2026. https://www.eurekalert.org/news-releases/1122449
 • Mosquera, Pau. “Sagrada Família’s 144-year journey nears its end with the Tower of Jesus Christ.” CNN. 6/8/2026. https://www.cnn.com/2026/06/08/style/sagrada-familia-barcelona-tower-jesus-christ-intl
 • Nicholls, Catherine and Taylor Nicioli. “Papyrus scroll burnt to a crisp during Vesuvius eruption deciphered with help of AI.” CNN. 6/26/2026. https://www.cnn.com/2026/06/26/science/papyrus-scroll-vesuvius-ai-scli-intl
 • Oster, Sandee et al. “Rare 500-year-old freeze-dried potatoes unearthed at Inca coastal site.” Phys.org. 6/14/2026. https://phys.org/news/2026-06-rare-year-dried-potatoes-unearthed.html
 • Oster, Sandee. “A kohl bottle from York may hint at an ancient Egyptian in Roman-Britain.” Phys.org. 5/31/2026. https://phys.org/news/2026-05-kohl-bottle-york-hint-ancient.html
 • Oster, Sandee. “Lavatory shaft reveals the cost of 17th‑century vanity in Germany.” Phys.org. 6/23/2026. https://phys.org/news/2026-06-lavatory-shaft-reveals-17thcentury-vanity.html
 • Oster, Sandee. “Mummified dogs reveal Tiwanaku people buried companions beside homes long before they became status symbols.” Phys.org. 6/29/2026. https://phys.org/news/2026-06-mummified-dogs-reveal-tiwanaku-people.html
 • Randolph, Mary. “A Man and His Dog Discovered a 3,400-Year-Old Ax Head While Out for a Walk in One of England’s Ancient Forests.” Smithsonian. 4/30/2026. https://www.smithsonianmag.com/smart-news/a-man-and-his-dog-accidentally-discovered-a-3400-year-old-ax-head-while-out-for-a-walk-in-one-of-englands-ancient-forests-180988649/
 • Randolph, Mary. “After a Poet’s Love Story Was Cut Short, His Letters Mysteriously Disappeared—Until Rare Book Dealers Acted on a Hunch.” Smithsonian. 4/21/2026. https://www.smithsonianmag.com/smart-news/after-john-keats-love-story-was-cut-short-his-letters-mysteriously-disappeared-until-rare-book-dealers-acted-on-a-hunch-180988585/
 • Science in Poland. “Ancient ‘beer’ traces found in 4,500-year-old vessels in Northeastern Poland.” 5/17/2026. https://scienceinpoland.pl/en/news/news%2C112850%2Cancient-beer-traces-found-4500-year-old-vessels-northeastern-poland.html
 • Solly, Meilan. “A 13-Year-Old Boy Found This Bronze Coin in a Field. It Turned Out to Be the First Ancient Greek Artifact Discovered in Berlin.” Smithsonian. 8/28/2026. https://www.smithsonianmag.com/smart-news/a-13-year-old-boy-found-this-bronze-coin-in-a-field-it-turned-out-to-be-the-first-ancient-greek-artifact-discovered-in-berlin-180988627/
 • Solly, Meilan. “New research has identified four members of the doomed 1845 search for the Northwest Passage, including the owner of a paper-stuffed wallet that has long mystified historians.” Smithsonian. 5/8/2026. https://www.smithsonianmag.com/smart-news/this-franklin-expedition-officer-died-in-the-arctic-in-uniform-that-didnt-belong-to-him-now-dna-has-revealed-his-identity-180988702/
 • Solly, Meilan. “These Italian Teenagers Stayed Overnight at Their School. They Found Ancient Roman Ruins Hidden in the Basement.” Smithsonian. 6/8/2026. https://www.smithsonianmag.com/smart-news/these-italian-teenagers-stayed-overnight-at-their-school-they-found-ancient-roman-ruins-hidden-in-the-basement-180988917/
 • The History Blog. “1,500-year-old kitchen knife set found in Hadrianopolis.” 4/22/2026. https://www.thehistoryblog.com/archives/75890
 • The History Blog. “11th c. sword found in Warta River in Poland.” 6/15/2026. https://www.thehistoryblog.com/archives/76308
 • The History Blog. “Charred loaf of bread found at Roman military camp.” 4/24/2026. https://www.thehistoryblog.com/archives/75904
 • The History Blog. “First-grader on field trip finds 1,300-year-old sword.” 5/13/2026. https://www.thehistoryblog.com/archives/76055
 • The History Blog. “Matching fragments of Silla stele reunited.” 4/15/2026. https://www.thehistoryblog.com/archives/75837
 • Thorsberg, Christian. “A Hiker in Norway Found an Elite Warrior’s Golden Sword Ornament. It Was Likely a Sacrifice to the Gods Made During a Time of Turmoil.” Smithsonian. 5/8/2026. https://www.smithsonianmag.com/smart-news/a-hiker-in-norway-found-an-elite-warriors-golden-sword-ornament-it-was-likely-a-sacrifice-to-the-gods-made-during-a-time-of-turmoil-180988707/
 • University of Copenhagen. "4,000-year-old tablets reveal magic spells, kings feared, and a beer receipt." ScienceDaily. ScienceDaily, 5 May 2026. www.sciencedaily.com/releases/2026/05/260504023848.htm.
 • University of Iowa Health Care. "Ancient DNA shared with Neanderthals may explain human language." ScienceDaily. ScienceDaily, 12 June 2026. www.sciencedaily.com/releases/2026/06/260611024612.htm
 • University of York. “Ancient DNA from Tuscan Wells Reveal Origins of Modern Wine.” 5/12/2026. https://www.york.ac.uk/news-and-events/news/2026/research/ancient-dna-tuscan-wells-origins-wine/
 • Wexler, Ellen. “Archaeologists Unearth a Papyrus Fragment From the ‘Iliad’ Tucked Inside the Wrappings of a 1,600-Year-Old Egyptian Mummy.” Smithsonian. 4/23/2026. https://www.smithsonianmag.com/smart-news/archaeologists-unearth-a-papyrus-fragment-from-the-iliad-tucked-inside-the-wrappings-of-a-1600-year-old-egyptian-mummy-180988603/
 • Wexler, Ellen. “Divers Discover the Shipwreck of a World War I-Era Coast Guard Cutter, Which Vanished With 131 Sailors on Board in 1918.” Smithsonian. 5/7/2026. https://www.smithsonianmag.com/history/divers-discover-the-shipwreck-of-a-world-war-i-era-coast-guard-cutter-which-vanished-with-131-sailors-on-board-in-1918-180988676/
 • Wexler, Ellen. “Why Did the Handwriting in This 248-Year-Old Notebook Look Familiar? It Turned Out to Be a Forgotten Mozart Manuscript.” Smithsonian. 6/25/2026. https://www.smithsonianmag.com/smart-news/why-did-the-handwriting-in-this-248-year-old-notebook-look-familiar-it-turned-out-to-be-a-forgotten-mozart-manuscript-180989017/
 • Whiddington, Richard. “Newly Recovered Love Letters by John Keats Could Net $2 Million at Auction.” ArtNet. 5/12/2026. https://news.artnet.com/art-world/john-keats-love-letters-sothebys-auction-2772300
 • Whiddington, Richard. “Rare Centuries-Old Notebook Discovered in Medieval Latrine.” ArtNet. 5/18/2026. https://news.artnet.com/art-world/notebook-medieval-latrine-2774230
 • Whiddington, Richard. “Shakespeare’s London Home Finally Located After Centuries of Mystery.” ArtNet. 4/17/2026. https://news.artnet.com/art-world/shakespeare-london-home-site-found-2766154
 • Widdington, Richard. “Lost Copy of Earliest-Known English Poem Found in Roman Library.” ArtNet. 5/10/2026. https://news.artnet.com/art-world/caedmon-hymn-copy-rome-library-trinity-college-2771600
 
 

See omnystudio.com/listener for privacy information.

Unearthed! In July 2026, Part 2

Part one of the mid-year coverage of things literally and figuratively unearthed in the last quarter includes updates, more updates, animals, edibles and potables, and accidental finds.
 
Research:
 
 • Addley, Esther. “Solstice-aligned 5,000-year-old monument ‘once in a lifetime find’, say archaeologists.” The Guardian. 6/17/2026. https://www.theguardian.com/uk-news/2026/jun/18/solstice-aligned-monument-archaeology-wiltshire-stonehenge-prototype
 • Anderson, Sonja. “These 600-Year-Old Chinese Surgical Instruments Are Coated in an Early Local Anesthetic—Carefully Extracted From a Poisonous Plant.” Smithsonian. 5/29/2026. https://www.smithsonianmag.com/smart-news/these-600-year-old-chinese-surgical-instruments-are-coated-in-an-early-local-anestheticcarefully-extracted-from-a-poisonous-plant-180988865/
 • Archaeology Magazine. “Copper Part From Illicit 19th Century Still Discovered in Scotland.” 5/12/2026. https://archaeology.org/news/2026/05/12/copper-part-from-illicit-19th-century-still-discovered-in-scotland/
 • Associated Press Copenhagen. “Archaeologists discover wreck of Danish warship sunk by Nelson 225 years ago.” The Guardian. 4/2/2026. https://www.theguardian.com/science/2026/apr/02/archaeologists-discover-wreck-danish-warship-sunk-admiral-nelson
 • Bassi, Margherita. “After Nearly 80 Years of Doubt, Scientists Say a Spear Lodged Between Elephant Ribs Offers Evidence That Neanderthals Hunted Big Game.” Smithsonian. 4/10/2026. https://www.smithsonianmag.com/smart-news/after-nearly-80-years-of-doubt-scientists-say-a-spear-lodged-between-elephant-ribs-offers-evidence-that-neanderthals-hunted-big-game-180988522/
 • Baum, Stephanie and Robert Egan. “Bolivian mummy rewrites scarlet fever's past, suggesting killer bacterium circulated centuries before colonization.” EurekAlert. 4/15/2026. https://phys.org/news/2026-04-bolivian-mummy-rewrites-scarlet-fever.html
 • Blackwood, Emma. “Baby fossils reveal link between human and Neanderthal development.” University of Queensland. Via EurekAlert. 6/19/2026. https://www.eurekalert.org/news-releases/1132850
 • Blair, Elizabeth. “Decades-old, newly restored Smithsonian carousel reopens — to children’s delight.” WAMU. 4/25/2026. https://wamu.org/story/26/04/25/decades-old-newly-restored-smithsonian-carousel-reopens-to-childrens-delight/
 • Blake, Elissa. “New evidence reveals a millennium-old dingo was ritually buried, and cared for, along the Darling (Baaka) River in Australia.” University of Sydney. Via EurekAlert. 5/18/2026. https://www.eurekalert.org/news-releases/1128408
 • Cerino, Marco. “Appeals court clears Trump's path to alter Philadelphia slavery exhibit at historic site.” Philadelphia Tribune. 6/18/2026. https://www.phillytrib.com/news/local_news/appeals-court-clears-trumps-path-to-alter-philadelphia-slavery-exhibit-at-historic-site/article_8ac83e65-6a6d-4db1-91c4-074f98c96a74.html?utm_medium=social&utm_source=email&utm_campaign=user-share
 • Clark, Gaby. “Climate and competition alone cannot explain Neanderthal extinction, study finds.” Phys.org. 4/23/2026. https://phys.org/news/2026-04-climate-competition-neanderthal-extinction.html
 • Clark, Gaby. “Did Neanderthals use rhinoceros teeth as tools?” Phys.org. 6/18/2026. https://phys.org/news/2026-06-neanderthals-rhinoceros-teeth-tools.html
 • Clark, Gaby. “Nondestructive DNA sampling reveals 1,300 years of secrets in historic parchments.” Phys.org. 5/18/2026. https://phys.org/news/2026-05-nondestructive-dna-sampling-reveals-years.html
 • Clark, Gaby. “Surprising diversity found among Europe's last Neanderthals.” Leiden University. Via Phys.org. 6/24/2026. https://phys.org/news/2026-06-diversity-europe-neanderthals.html
 • Cummings, Mike. “Medici brothers' remains reveal Renaissance-era malaria strains, closing the book on a murder mystery.” Phys.org. 6/30/2026. https://phys.org/news/2026-06-medici-brothers-reveal-renaissance-era.html
 • Defranceschi, Laura. “Ötzi and his microbiome: a 5,300-year-old relationship.” Eurac Research. Via EurekAlert. 6/2/2026. https://www.eurekalert.org/news-releases/1129908
 • Dungate, Joanna. “Shakespeare’s ‘missing’ London house mapped with new discovery.” Kings College London. Via EurekAlert. 4/15/2026. https://www.eurekalert.org/news-releases/1123989
 • Egan, Robert. “Neanderthal dentists used stone drills to treat cavities nearly 60,000 years ago, ancient molar suggests.” Phys.org. 5/13/2026. https://phys.org/news/2026-05-neanderthal-dentists-stone-drills-cavities.html
 • Egan, Robert. “Stonehenge Altar Stone's epic transportation across ancient Britain detailed in new study.” Curtin University. Via Phys.org. 6/4/2026. https://phys.org/news/2026-06-stonehenge-altar-stone-epic-ancient.html
 • Ellenby, Danielle. “Medieval Japanese poetry and buried trees help elucidate volatile space weather.” EurekAlert. 4/9/2026. https://www.eurekalert.org/news-releases/1123008
 • Forbes, Ellie. “Archaeologists discover unexploded mortar shell at Culloden Battlefield.” Scottish Field. 4/14/2026. https://www.scottishfield.co.uk/news/archaeologists-discover-unexploded-mortar-shell-at-culloden-battlefield/
 • Harley, Sadie and Robert Egan. “Ancient chicken bones reveal human management in Korea 2,000 years ago.” Phys.org. 4/22/2026. https://phys.org/news/2026-04-ancient-chicken-bones-reveal-human.html
 • Jones, Sam. “Hidden treasures: Spanish archaeologists discover trove of ancient shipwrecks in Bay of Gibraltar.” The Guardian. 4/15/2026. https://www.theguardian.com/science/2026/apr/15/hidden-treasures-spanish-archaeologists-discover-trove-of-ancient-shipwrecks-in-bay-of-gibraltar
 • Kuta, Sarah. “A Shipwreck, but Make It Fashion: Researchers Transformed Wooden Fragments From a 17th-Century Shipwreck Into a Pair of Stylish Maxi Dresses.” Smithsonian. 5/26/2026. https://www.smithsonianmag.com/smart-news/a-shipwreck-but-make-it-fashion-researchers-transformed-wooden-fragments-from-a-17th-century-shipwreck-into-a-pair-of-stylish-maxi-dresses-180988825/
 • Kuta, Sarah. “Archaeologists Discover Evidence That a Wooden Prototype for Stonehenge May Have Aligned With the Solstice 500 Years Before the Stone Circle.” Smithsonian. 6/19/2026. https://www.smithsonianmag.com/smart-news/archaeologists-discover-evidence-a-wooden-prototype-for-stonehenge-may-have-aligned-with-the-solstice-500-years-before-the-stone-circle-180988988/
 • Kuta, Sarah. “Did Homo Sapiens Really Outsmart Neanderthals? Different Skull Shapes Didn’t Necessarily Mean Unequal Brain Capacity, New Research Shows.” Smithsonian. 5/13/2026. https://www.smithsonianmag.com/smart-news/did-homo-sapiens-really-outsmart-neanderthals-different-skull-shapes-didnt-necessarily-mean-unequal-brain-capacity-new-research-shows-180988738/
 • Kuta, Sarah. “Did Homo Sapiens Really Outsmart Neanderthals? Different Skull Shapes Didn’t Necessarily Mean Unequal Brain Capacity, New Research Shows.” Smithsonian. 5/13/2026. https://www.smithsonianmag.com/smart-news/did-homo-sapiens-really-outsmart-neanderthals-different-skull-shapes-didnt-necessarily-mean-unequal-brain-capacity-new-research-shows-180988738/
 • Kuta, Sarah. “Potatoes Didn’t Just Feed Ancient Indigenous Communities in the Andes—the Tasty Tubers Also Reshaped People’s DNA.” Smithsonain. 5/12/2026. https://www.smithsonianmag.com/smart-news/potatoes-didnt-just-feed-ancient-indigenous-communities-in-the-andes-the-tasty-tubers-also-reshaped-peoples-dna-180988732/
 • Kuta, Sarah. “This American Submarine Lost During WWII—Along With 83 Crew Members—Has Been Discovered in the Pacific Ocean.” Smithsonian. 6/3/2026. https://www.smithsonianmag.com/smart-news/this-american-submarine-USS-Herring-lost-during-WWII-along-with-83-crew-members-has-been-discovered-in-the-pacific-ocean-180988895/
 • Kuta, Sarah. “Turtles May Have Been Tasty Snacks for Neanderthals 125,000 Years Ago. But Their Shells Were Probably the Real Prize.” Smithsonian. 4/15/2026. https://www.smithsonianmag.com/smart-news/turtles-may-have-been-tasty-snacks-for-neanderthals-125000-years-ago-but-their-shells-were-probably-the-real-prize-180988550/
 • Kuta, Sarah. “What Killed the Neanderthals? New Research Suggests a Lack of Genetic Diversity May Be Partially to Blame.” Smithsonian. 4/24/2026. https://www.smithsonianmag.com/smart-news/what-killed-the-neanderthals-new-research-suggests-a-lack-of-genetic-diversity-may-be-partially-to-blame-180988612/
 • Lakowski, Amy. “Digging for Remnants of the Battle of Bunker Hill.” Bostonia. Boston University’s Alumni Magazine. 6/22/2026. https://www.bu.edu/articles/2026/digging-for-remnants-battle-of-bunker-hill/
 • Lawson-Tancred, Jo. “The Sagrada Familia Will Finally Be Completed in 2026. The Last Challenge? Demolishing the Homes of Some 3,000 Local Residents.” ArtNet. 2/13/2023. https://news.artnet.com/art-world/sagrada-familia-2026-local-residents-2254826
 • Lock, Lisa and Robert Egan. “Ancient curse tablet bears rare Greek inscription with binding spell intended to harm enemies.” Phys.org. 6/17/2026. https://phys.org/news/2026-06-ancient-curse-tablet-rare-greek.html
 • Lu, Donna. “Signs of ‘feeding’ ritual at dingo burial site shed new light on bond between First Nations people and canines.” The Guardian. 5/18/2026. https://www.theguardian.com/science/2026/may/19/dingo-burial-site-first-nations-people-relationship-to-animals
 • net. “Lost Writings of Saint Augustine Found in Medieval Manuscript.” 6/2026. https://www.medievalists.net/2026/06/lost-writings-of-saint-augustine-found-in-medieval-manuscript/
 • net. “Secret Letter Detailing Late Medieval Britain Fully Decoded.” https://www.medievalists.net/2026/04/secret-letter-detailing-late-medieval-britain-fully-decoded/
 • Mehrtens, Michelle. “A Young Black Girl Was the First to Desegregate a Maryland Carousel in the 1960s. Now, the Historic Merry-Go-Round Will Entertain Visitors on the National Mall.” Smithsonian. 4/22/2026. https://www.smithsonianmag.com/smithsonian-institution/a-young-black-girl-was-the-first-to-desegregate-a-maryland-carousel-in-the-1960s-now-the-historic-merry-go-round-will-entertain-visitors-on-the-national-mall-180988596/
 • Mondal, Sanjukta. “Scraped from ancient Roman toilets, these crusted remains expose a pathogen found far earlier than expected.” Phys.org. 4/23/2026. https://phys.org/news/2026-04-ancient-roman-toilets-crusted-expose.html
 • Moreau, Didier and Julie Louis. “Thirty previously unpublished verses by Empedocles discovered on a papyrus from Cairo.” University of Liege. Via EurekAlert. 4/1/2026. https://www.eurekalert.org/news-releases/1122449
 • Mosquera, Pau. “Sagrada Família’s 144-year journey nears its end with the Tower of Jesus Christ.” CNN. 6/8/2026. https://www.cnn.com/2026/06/08/style/sagrada-familia-barcelona-tower-jesus-christ-intl
 • Nicholls, Catherine and Taylor Nicioli. “Papyrus scroll burnt to a crisp during Vesuvius eruption deciphered with help of AI.” CNN. 6/26/2026. https://www.cnn.com/2026/06/26/science/papyrus-scroll-vesuvius-ai-scli-intl
 • Oster, Sandee et al. “Rare 500-year-old freeze-dried potatoes unearthed at Inca coastal site.” Phys.org. 6/14/2026. https://phys.org/news/2026-06-rare-year-dried-potatoes-unearthed.html
 • Oster, Sandee. “A kohl bottle from York may hint at an ancient Egyptian in Roman-Britain.” Phys.org. 5/31/2026. https://phys.org/news/2026-05-kohl-bottle-york-hint-ancient.html
 • Oster, Sandee. “Lavatory shaft reveals the cost of 17th‑century vanity in Germany.” Phys.org. 6/23/2026. https://phys.org/news/2026-06-lavatory-shaft-reveals-17thcentury-vanity.html
 • Oster, Sandee. “Mummified dogs reveal Tiwanaku people buried companions beside homes long before they became status symbols.” Phys.org. 6/29/2026. https://phys.org/news/2026-06-mummified-dogs-reveal-tiwanaku-people.html
 • Randolph, Mary. “A Man and His Dog Discovered a 3,400-Year-Old Ax Head While Out for a Walk in One of England’s Ancient Forests.” Smithsonian. 4/30/2026. https://www.smithsonianmag.com/smart-news/a-man-and-his-dog-accidentally-discovered-a-3400-year-old-ax-head-while-out-for-a-walk-in-one-of-englands-ancient-forests-180988649/
 • Randolph, Mary. “After a Poet’s Love Story Was Cut Short, His Letters Mysteriously Disappeared—Until Rare Book Dealers Acted on a Hunch.” Smithsonian. 4/21/2026. https://www.smithsonianmag.com/smart-news/after-john-keats-love-story-was-cut-short-his-letters-mysteriously-disappeared-until-rare-book-dealers-acted-on-a-hunch-180988585/
 • Science in Poland. “Ancient ‘beer’ traces found in 4,500-year-old vessels in Northeastern Poland.” 5/17/2026. https://scienceinpoland.pl/en/news/news%2C112850%2Cancient-beer-traces-found-4500-year-old-vessels-northeastern-poland.html
 • Solly, Meilan. “A 13-Year-Old Boy Found This Bronze Coin in a Field. It Turned Out to Be the First Ancient Greek Artifact Discovered in Berlin.” Smithsonian. 8/28/2026. https://www.smithsonianmag.com/smart-news/a-13-year-old-boy-found-this-bronze-coin-in-a-field-it-turned-out-to-be-the-first-ancient-greek-artifact-discovered-in-berlin-180988627/
 • Solly, Meilan. “New research has identified four members of the doomed 1845 search for the Northwest Passage, including the owner of a paper-stuffed wallet that has long mystified historians.” Smithsonian. 5/8/2026. https://www.smithsonianmag.com/smart-news/this-franklin-expedition-officer-died-in-the-arctic-in-uniform-that-didnt-belong-to-him-now-dna-has-revealed-his-identity-180988702/
 • Solly, Meilan. “These Italian Teenagers Stayed Overnight at Their School. They Found Ancient Roman Ruins Hidden in the Basement.” Smithsonian. 6/8/2026. https://www.smithsonianmag.com/smart-news/these-italian-teenagers-stayed-overnight-at-their-school-they-found-ancient-roman-ruins-hidden-in-the-basement-180988917/
 • The History Blog. “1,500-year-old kitchen knife set found in Hadrianopolis.” 4/22/2026. https://www.thehistoryblog.com/archives/75890
 • The History Blog. “11th c. sword found in Warta River in Poland.” 6/15/2026. https://www.thehistoryblog.com/archives/76308
 • The History Blog. “Charred loaf of bread found at Roman military camp.” 4/24/2026. https://www.thehistoryblog.com/archives/75904
 • The History Blog. “First-grader on field trip finds 1,300-year-old sword.” 5/13/2026. https://www.thehistoryblog.com/archives/76055
 • The History Blog. “Matching fragments of Silla stele reunited.” 4/15/2026. https://www.thehistoryblog.com/archives/75837
 • Thorsberg, Christian. “A Hiker in Norway Found an Elite Warrior’s Golden Sword Ornament. It Was Likely a Sacrifice to the Gods Made During a Time of Turmoil.” Smithsonian. 5/8/2026. https://www.smithsonianmag.com/smart-news/a-hiker-in-norway-found-an-elite-warriors-golden-sword-ornament-it-was-likely-a-sacrifice-to-the-gods-made-during-a-time-of-turmoil-180988707/
 • University of Copenhagen. "4,000-year-old tablets reveal magic spells, kings feared, and a beer receipt." ScienceDaily. ScienceDaily, 5 May 2026. www.sciencedaily.com/releases/2026/05/260504023848.htm.
 • University of Iowa Health Care. "Ancient DNA shared with Neanderthals may explain human language." ScienceDaily. ScienceDaily, 12 June 2026. www.sciencedaily.com/releases/2026/06/260611024612.htm
 • University of York. “Ancient DNA from Tuscan Wells Reveal Origins of Modern Wine.” 5/12/2026. https://www.york.ac.uk/news-and-events/news/2026/research/ancient-dna-tuscan-wells-origins-wine/
 • Wexler, Ellen. “Archaeologists Unearth a Papyrus Fragment From the ‘Iliad’ Tucked Inside the Wrappings of a 1,600-Year-Old Egyptian Mummy.” Smithsonian. 4/23/2026. https://www.smithsonianmag.com/smart-news/archaeologists-unearth-a-papyrus-fragment-from-the-iliad-tucked-inside-the-wrappings-of-a-1600-year-old-egyptian-mummy-180988603/
 • Wexler, Ellen. “Divers Discover the Shipwreck of a World War I-Era Coast Guard Cutter, Which Vanished With 131 Sailors on Board in 1918.” Smithsonian. 5/7/2026. https://www.smithsonianmag.com/history/divers-discover-the-shipwreck-of-a-world-war-i-era-coast-guard-cutter-which-vanished-with-131-sailors-on-board-in-1918-180988676/
 • Wexler, Ellen. “Why Did the Handwriting in This 248-Year-Old Notebook Look Familiar? It Turned Out to Be a Forgotten Mozart Manuscript.” Smithsonian. 6/25/2026. https://www.smithsonianmag.com/smart-news/why-did-the-handwriting-in-this-248-year-old-notebook-look-familiar-it-turned-out-to-be-a-forgotten-mozart-manuscript-180989017/
 • Whiddington, Richard. “Newly Recovered Love Letters by John Keats Could Net $2 Million at Auction.” ArtNet. 5/12/2026. https://news.artnet.com/art-world/john-keats-love-letters-sothebys-auction-2772300
 • Whiddington, Richard. “Rare Centuries-Old Notebook Discovered in Medieval Latrine.” ArtNet. 5/18/2026. https://news.artnet.com/art-world/notebook-medieval-latrine-2774230
 • Whiddington, Richard. “Shakespeare’s London Home Finally Located After Centuries of Mystery.” ArtNet. 4/17/2026. https://news.artnet.com/art-world/shakespeare-london-home-site-found-2766154
 • Widdington, Richard. “Lost Copy of Earliest-Known English Poem Found in Roman Library.” ArtNet. 5/10/2026. https://news.artnet.com/art-world/caedmon-hymn-copy-rome-library-trinity-college-2771600
 
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Unearthed! In July 2026, Part 1

This 2023 episode covers how humans have worked on ways to make garments water resistant almost since they started to wear them. But figuring out how to manufacture a raincoat using rubber was a big breakthrough that took centuries.

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SYMHC Classics: Raincoats

Holly and Tracy discuss how frustrating Charles Goodyear could be. Then Holly talks a lot about shoes and how much she loves them.

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Behind the Scenes Minis: Shoes, Shoes, Shoes!

The evolution from leather-soled shoes of the 19th century to the sneakers people wear today started slowly, then built momentum. Many of the big names in sneakers today got their start surprisingly early in the process.
 
Research:
 
 
 
 • “A Column for the Girls.” Brooklyn Eagle. July 28, 1895. https://www.newspapers.com/image/50411759/?match=1&terms=%22sand%20shoes%22
 • Barrett, Jennifer. “The History of Adidas and Puma.” Newsweek. March 13, 2008. https://www.newsweek.com/history-adidas-and-puma-86373
 • Bisno, Adam. “The search for lost X-patents.” USPTO. July 13, 2022. https://www.uspto.gov/blog/the-search-for-lost-x
 • “Brand Story.” Dunlop. https://www.dunlopboots.com/why-dunlop/brand-story
 • Carpenter, Julia. “Adidas vs. Puma: The Family Rift That Shaped the Sportswear Industry.” History. May 6, 2026. https://www.history.com/articles/adidas-puma-rivalry-dassler
 • “Chuck Taylor Converse All Star: The Man Who Made the Shoe.” Indiana Historical Society. https://indianahistory.org/events/chuck-taylor-converse-all-star-the-man-who-made-the-shoe-2/
 • “The Company.” New Balance. https://www.newbalance.gr/en/etaireia/profil/?__cf_chl_f_tk=TZRFzU2s58Jw3z.lFjWqe.bQmjADyBkIMMpMI4v.Cuk-1783279660-1.0.1.1-sWRq2n.zJUdoWCA6sKXCjtDKIRGvxztpX5Rhq4MRJ4s
 • Cousens, Nico. “Inventions that made the modern running shoe.” Kilburn & Strode. April 17, 2018.
 • Cunliffe, Paul and Lauren Hirst. “Co-founder of £2.5bn brand started out as factory help.” BBC. Oct. 1, 2025. https://www.bbc.com/news/articles/cp8jdlndg0xo
 • Department of Nike Archives. “From Waffle Iron to World Stage: The True Story of the Nike Moon Shoe.” Nike. Sept. 15, 2025. https://about.nike.com/en/magazine/nike-moon-shoe-waffle-iron-true-history
 • “Fashion Notes.” The Times-Union. July 22, 1882. https://www.newspapers.com/image/1275226621/?match=1&terms=%22lawn-tennis%20shoe%22
 • “The History of the Sneaker.” The Washington Post. May 14, 2002. https://www.washingtonpost.com/archive/lifestyle/2002/05/14/the-history-of-the-sneaker/aa2096d1-a7e2-4427-a324-cb603512722d/
 • Hunt, Kristin. “11 Comfy Facts About Keds.” Mental Floss. March 26, 2022. https://www.mentalfloss.com/culture/fashion-beauty/11-comfy-facts-about-keds
 • “The Invention of the Iconic Vans Skateboarding Shoe.” The Lemelson Center for the Study of Invention and Innovation.” https://invention.si.edu/invention-stories/invention-iconic-vans-skateboarding-shoe
 • “Journey of an Icon: The History of the Chuck Taylor All Star.” Nike. https://about.nike.com/en/magazine/converse-chuck-taylor-all-star-iconic-sneaker-true-history
 • Keller, Kate. “A Brief History of America’s Obsession With Sneakers.” Smithsonian. May 18, 2018. https://www.smithsonianmag.com/innovation/brief-history-americas-obsession-sneakers-180969116/
 • Lorge, Barry Steven, Aberdare, Morys George Lyndhurst Bruce, 4th Baron. "tennis". Encyclopedia Britannica, 16 Jun. 2026, https://www.britannica.com/sports/tennis
 • Lou, Michelle. “Nike’s rare ‘Moon Shoe’ is sold for $437,500, shattering the auction record for sneakers.” CNN. July 23, 2019. https://www.cnn.com/style/article/nike-moon-shoe-sold-auction-trnd
 • “Notice! Tennis Players!” Des Moines Register. June 8, 1888. https://www.newspapers.com/image/127760140/?match=1&terms=%22lawn-tennis%20shoe%22
 • “Off The Wall- Since 1966. The Story Of Vans.” Vans. https://www.vans.com/en-us/about#early-1970s
 • “Patent India Rubber or Gum Elastic Shoes.” Monmouth Democrat. January 22, 1835. https://www.newspapers.com/image/496911351/?match=2&terms=Wait%20Webster
 • “Peachtree Through the Years 1970-2021.” Atlanta Track Club. https://www.atlantatrackclub.org/event-information-history
 • “Plaint of an Old Shoe.” The Boston Globe. Aug. 23, 1894. https://www.newspapers.com/image/430680218/?match=1&terms=sneaker
 • “Plimsoll Draws the Line.” Nautilus International. April 24, 2026. https://www.nautilusint.org/en/news-insight/telegraph/plimsoll-draws-the-line/
 • “Puma and Adidas' rivalry has divided a small German town for 70 years — here's what it looks like now.” Business Insider. October 2018. https://www.businessinsider.com/how-puma-and-adidas-rivalry-divided-their-founding-town-for-70-years-2018-10
 • Rickey, Melanie. “Flash of Genius.” The Independent. June 28, 1996. https://www.the-independent.com/life-style/flash-of-genius-1339404.html
 • “Sneakers.” Record-Journal. Aug. 8, 1898. https://www.newspapers.com/image/674954692/?match=6&terms=sneaker
 • “Sneakers Latest in Women’s Wear.” The Battle Creek Enquirer. May 18, 1913. https://www.newspapers.com/image/1044420723/?match=1&terms=sneaker
 • “’Sneakers’ the Things.” L'abeille De La Nouvelle-Orléans (New Orleans Bee). Nov. 11, 1904. https://www.newspapers.com/image/1323250586/?match=1&terms=sneaker
 • “Sneakers – Worldwide.” Statista. https://www.statista.com/outlook/cmo/footwear/sneakers/worldwide
 • Sun, Michael. “‘Everyone owns at least one pair’: $75bn sneaker industry unboxed in Gold Coast exhibition.” The Guardian. Nov. 25, 2023. https://www.theguardian.com/fashion/2023/nov/26/sneakers-unboxed-hota-shoe-exhibition-gold-coast-queensland-australia
 • Tikkanen, Amy. "history of sneakers". 
Encyclopedia Britannica • , 14 Oct. 2024, https://www.britannica.com/topic/history-of-sneakers
 • Turner, Thomas. “The Production and Consumption of Lawn-Tennis Shoes in Late-Victorian Britain.” Journal of British Studies. JULY 2016, Vol. 55, No. 3 (JULY 2016), pp. 474-500. https://www.jstor.org/stable/10.2307/26598891
 • Turner, Thomas. “The Sports Shoe: A History from Field to Fashion.” Bloomsbury. 2019.
 • Umoh, Ruth. “Here’s how much Nike’s billionaire founder paid for the infamous swoosh logo in 1971.” CNBC. Sept. 5, 2018. https://www.cnbc.com/2018/09/05/heres-how-much-nikes-billionaire-founder-paid-for-its-swoosh-logo.html
 • “Value of the sneakers market worldwide from 2018 to 2030.” Statista. https://www.statista.com/forecasts/1017918/sneakers-market-value-forecast-worldwide/
 • “Where Basketball was Invented: The History of Basketball.” Springfield College. https://springfield.edu/about/birthplace-of-basketball
 • “40. For a method of attaching leather soles to boots and shoes of India rubber; Wait Webster, city of New York, May 21.” Journal of the Franklin Institute. Volume 14, Issue 6. 1832. Page 391. https://doi.org/10.1016/S0016-0032(32)90275-0.
 
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Running Through Sneaker History

Charles Goodyear's work is important to so many things we have in the 21st century. But his life and his work to create a stable rubber was full of problems -- many of them caused by Goodyear himself.
 
Research:
 
 • Britannica Editors. "Charles Goodyear". 
Encyclopedia Britannica • , 25 Dec. 2025, https://www.britannica.com/biography/Charles-Goodyear
 • “Charles Goodyear.” Who Made America? PBS. https://www.pbs.org/wgbh/theymadeamerica/whomade/goodyear_hi.html
 • “Charles Goodyear - Vulcanization of Rubber.” National Inventors Hall of Fame. https://www.invent.org/inductees/charles-goodyear
 • “Charles Goodyear - Vulcanized Rubber.” Lemelson-MIT. https://lemelson.mit.edu/resources/charles-goodyear
 • “Charles Goodyear and the Vulcanization of Rubber.” ConnecticutHistory.org. https://connecticuthistory.org/charles-goodyear-and-the-vulcanization-of-rubber/
 • “Charles Goodyear’s Machine for Making Rubber Fabrics.” ConnecticutHistory.org. https://connecticuthistory.org/charles-goodyears-machine-for-making-rubber-fabrics/
 • “Death of Charles Goodyear.” Carbondale Advantage. July 21, 1860. https://www.newspapers.com/image/638799032/?match=2&terms=%22charles%20goodyear%22
 • Goodyear, Charles. “Gum-elastic and its varieties : with a detailed account of its applications and uses, and of the discovery of vulcanization.” New Haven. Published for the Author. 1853. https://archive.org/details/gumelasticitsva121853good/
 • Goodyear, Charles. “IMPROVEMENT IN INDIA-RUBBER FABRICS.” United States Patent Office. June 15, 1844. https://web.archive.org/web/20150714081931/http://www.dpma.de/docs/service/klassifikationen/ipc/auto_ipc/us3633a.pdf
 • “Goodyear’s Gum Elastic Drapery and Parchment.” The Washington Union. May 4, 1837. https://www.newspapers.com/image/1038143941/?match=3&terms=%22charles%20goodyear%22%20mail
 • Iles, George. “Leading American Inventors.” H. Holt 1912. Accessed online: https://books.google.com/books?id=Hn0_AAAAIAAJ&source=gbs_navlinks_s
 • “India Rubber Fabric.” Daily Cleveland herald. October 10, 1835. https://www.newspapers.com/image/1073496245/?match=1&terms=%22Charles%20Goodyear%22
 • Slack, Charles. “Noble Obsession: Charles Goodyear, Thomas Hancock, and the Race to Unlock the Greatest Industrial Secret of the Nineteenth Century.” Hyperion. 2003.
 • Snow, Richard F. “Charles Goodyear.” American Heritage. April/May 1978. Vol. 29, Issue 3. https://www.americanheritage.com/charles-goodyear
 
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Charles Goodyear and Vulcanized Rubber

This 2022 episode covers the development of penicillin, which started – but definitely did not end – with the chance discovery of some mold in a petri dish.
 
 

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SYMHC Classics: Penicillin

Tracy shares stories of her time in London. There is also a discussion of Dorothy Crowfoot Hodgkin’s marriage.

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SYMHC Classics: Scarlet fever

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