Edwin Howard Armstrong isn’t exactly a well-known inventor, but his work in radio literally changed communications around the globe. But his most famous invention – FM radio – became a source of constant frustration after he developed it.

Research:

• Armstrong, Edwin H. “Frequency Modulation and Its Future Uses.” The Annals of the American Academy of Political and Social Science, vol. 213, 1941, pp. 153–61. JSTOR, http://www.jstor.org/stable/1024069
• Armstrong, Edwin H. “Personalities in Science.” Scientific American, vol. 154, no. 1, 1936, pp. 3–3. JSTOR, http://www.jstor.org/stable/26144367
• “First public radio broadcast.” Guinness World Records. https://www.guinnessworldrecords.com/world-records/381969-first-public-radio-broadcast
• “FM Inventor Dies in Fall.” The Patriot News. Feb. 2, 1954. https://www.newspapers.com/image/1094174282/?match=1&terms=%22Edwin%20Howard%20Armstrong%22
• Lessing, Lawrence P.. "Edwin H. Armstrong". Encyclopedia Britannica, 14 Dec. 2024, https://www.britannica.com/biography/Edwin-H-Armstrong
• Lessing, Lawrence P. “Man of High Fidelity: Edwin Howard Armstrong.” Bantam. 1969.
• Lessing, Lawrence P. “The Late Edwin H. Armstrong.” Scientific American, vol. 190, no. 4, 1954, pp. 64–69. JSTOR, http://www.jstor.org/stable/24944524
• “Proceedings of the Institute of Radio Engineers, Volume 5.” Institute of Radio Engineers. 1917. Accessed online: https://books.google.com/books?id=YEASAAAAIAAJ&source=gbs_navlinks_s
• “Radio Broadcast.” Garden City, N.Y.: Doubleday, Page & Co., 1922-1930. https://babel.hathitrust.org/cgi/pt?id=iau.31858044013914&view=1up&seq=277
• “Telephoning Without Wires.” The Fort Wayne Journal Gazette. Oct. 20, 1907. https://www.newspapers.com/image/29125618/?match=1&terms=audion%20%22de%20Forest%22
• Tsividis, Yannis. “Edwin Armstrong: Pioneer of the Airwaves.” Columbia Magazine. April 1, 2002. https://magazine.columbia.edu/article/edwin-armstrong-pioneer-airwaves
• Turner, H. M. “Dr. Edwin H. Armstrong, Edison Medalist.” The Scientific Monthly, vol. 56, no. 2, 1943, pp. 185–87. JSTOR, http://www.jstor.org/stable/17796
• “What’s the Difference Between AM and FM Radio?” National Inventors Hall of Fame. Aug, 16, 2023. https://www.invent.org/blog/trends-stem/difference-between-am-fm

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Before the ballpoint pen, people used their hands, reeds, bamboo, brushes, quills, and eventually nibs to write or draw. But how did things evolve from there to get to things like the fountain pen, and eventually, a ballpoint?

Research:

• "pen." Britannica Library, Encyclopædia Britannica, 26 Jul. 2021. libraries.state.ma.us/login?eburl=https%3A%2F%2Flibrary.eb.com&ebtarget=%2Flevels%2Freferencecenter%2Farticle%2Fpen%2F59036&ebboatid=9265652. Accessed 13 Jun. 2025.
• "Pen." UXL Science, UXL, 2008. Gale In Context: Science, link.gale.com/apps/doc/CV2646000736/GPS?u=mlin_n_melpub&sid=bookmark-GPS&xid=52ede570. Accessed 27 May 2025
• “Patent of Mr. Frederick Bartholomew Folsch, of Oxford street, for improvements on instruments, and pens, to facilitate writing.” https://archive.org/details/jstor-30072521/mode/2up
• Bayley, Stephen. “Obituary: Baron Marcel Bich.” The Independent. 6/1/1994. https://www.independent.co.uk/news/people/obituary-baron-marcel-bich-1419867.html
• Bourque, Joseph. “The Waterman Pen.” American Heritage. Jul/Aug92, Vol. 43 Issue 4, p30.
• Brachmann, Steve. “The Evolution of Modern Ballpoint Pen: A Patent History.” IP Watchdog. 12/10/2014. https://ipwatchdog.com/2014/12/10/the-evolution-of-modern-ballpoint-pen-a-patent-history/id=52550/
• Cross, Alonzo T. “Stylographic Pen.” U.S. Patent 232804. 10/5/1880.
• Daniels, Maygene. “The Ingenious Pen: American Writing Implements from the Eighteenth Century to the Twentieth.” The American Archivist , Summer, 1980, Vol. 43, No. 3 (Summer, 1980). Via JSTOR. https://www.jstor.org/stable/40292316
• Di Nardo, Sam. “When was the Fountain Pen Invented: A Brief History.” Dayspring Pens. 1/2/2023. https://www.dayspringpens.com/blogs/the-jotted-line/when-was-the-fountain-pen-invented-a-brief-history-1
• Di Nardo, Sam. “Who Invented the Ballpoint Pen?: A Brief History.” Sayspring Pens. s1/2/2023. https://www.dayspringpens.com/blogs/the-jotted-line/who-invented-the-ballpoint-pen-history?srsltid=AfmBOopQR061KHIKpgm_a0a0IHiTSiY_V-ahwIFQxU5MYzLLQ5vpHjXv
• Dowling, Stephen. “The cheap pen that changed writing forever.” BBC. 10/29/2020. https://www.bbc.com/future/article/20201028-history-of-the-ballpoint-pen
• German Patent and Trademark Office. “László Biró´s 125th birthday.” https://www.dpma.de/english/our_office/publications/milestones/inventionsthatmadehistory/kugelschreiber/index.html
• Laszlo, Josef Biro. “Writing Instrument.” U.S. patent 2390636. 12/11/1945.
• Loud, J.J. “Pen.” U.S. Patent 392046. 10/30/1888.
• National inventors Hall of Fame. “Laszlo Josef Biro.” https://www.invent.org/inductees/laszlo-josef-biro
• Riesberg, Van Vechton. “Fountain Pen.” U.S. Patent 1171652. 2/15/1916.
• Rothman, Lily. “Why the Invention of the Ballpoint Pen Was Such a Big Deal.” Time. 10/29/2015. https://time.com/4083274/ballpoint-pen/
• The American Society of Mechanical Engineers. “#236 Birome Ballpoint Pen Collection.” https://www.asme.org/about-asme/engineering-history/landmarks/236-birome-ballpoint-pen-collection
• Waterman, L.E. “Fountain Pen.” U.S. Patent 293545. 2/12/1884.

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This 2022 episode starts with the story of John Bibb, credited with cultivating Bibb lettuce. But his family’s legacy, good and bad, is all tied to having enslaved people build their familial wealth.

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Holly discusses the inscription on the Beachamps' headstone and the court of public opinion. Tracy shares information about Wilfred Owen's brother Harold.

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The Beauchamp-Sharpe tragedy of 1825, sometimes called the Kentucky tragedy, involves a politician, a young lawyer, and the lawyer’s wife. It unfolds as a story of sexual scandal and political intrigue that ultimately led to murder.

Research:

• Beauchamp, Jereboam O. “The confession of Jereboam Beauchamp (written by himself) who was executed at Frankfort, Ky., for the murder of Col. Solomon P. Sharp, a member of the legislature, and late attorney-general of Ky. To which is added some poetical pieces written by Mrs. Ann Beauchamp, who voluntarily put a period to her existence on the day of the execution of her husband, and was buried in the same grave with him.” H.T. Goodsell. Kentucky. https://digital.library.cornell.edu/catalog/sat1109
• “Beauchamp’s Trial.” The Frankfort Argus. May 10, 1826. https://www.newspapers.com/image/1040984938/?match=1&terms=beauchamp
• Bruce, Dickson D. “The Kentucky Tragedy: A Story of Conflict and Change in Antebellum America.” Louisiana State University Press. 2006.
• Coleman, J. Winston, Jr. “THE BEAUCHAMP - SHARP TRAGEDY: An Episode of Kentucky History During the Middle 1820's.” ROBERTS PRINTING COMPANY. Frankfurt, KY. 1950. Accessed online: https://babel.hathitrust.org/cgi/pt?id=inu.32000013353117&seq=9&format=plaintext
• Coleman, J. Winston. “The Beauchamp-Sharp tragedy; an episode of Kentucky history during the middle 1820's.” ROBERTS PRINTING COMPANY. FRANKFORT, KENTUCKY. 1950. Accessed online: https://babel.hathitrust.org/cgi/pt?id=inu.32000013353117&seq=9
• Cooke, J.W. “THE LIFE AND DEATH OF COLONEL SOLOMON P. SHARP PART 1: UPRIGHTNESS AND INVENTIONS; SNARES AND NETS.” The Filson Club History Quarterly. Vol. 72, No. 1. January 1998. https://filsonhistorical.org/wp-content/uploads/publicationpdfs/72-1-3_The-Life-and-Death-of-Colonel-Solomon-P.-Sharp-part-1-Uprightness-and-Inventions-Snares-and-Net_Cooke-J.W..pdf
• “Horrible Assassination.” The Frankfort Argus. Nov. 9. 1825. https://www.newspapers.com/image/1044971148/?match=1&terms=solomon%20sharp
• Jillson, Willard Rouse. “THE BEAUCHAMP—SHARP TRAGEDY IN AMERICAN LITERATURE.” Register of Kentucky State Historical Society, vol. 36, no. 114, 1938, pp. 54–60. JSTOR, http://www.jstor.org/stable/23371707
• Kimball, William J. “The ‘Kentucky Tragedy:’ Romance or Politics.” The Filson Club History Quarterly. Vol. 48. 1974. https://filsonhistorical.org/wp-content/uploads/publicationpdfs/48-1-3_The-Kentucky-Tragedy-Romance-of-Politics_Kimball-William-J..pdf
• “The Murderer od Col. Sharp.” Republican Banner. Nov. 28, 1825. https://www.newspapers.com/image/603858007/?match=1&terms=Jereboam%200.%20Beauchamp
• “The Mutilated Act.” Lexington Weekly Press. June 20, 1825. https://www.newspapers.com/image/1183393429/?match=1&terms=Jereboam%200.%20Beauchamp
• “Romantic 1825 Tragedy.” Kentucky Historical Society. https://history.ky.gov/markers/romantic-1825-tragedy
• Schoenbachler, Matthew G. “Murder and Madness: The Myth of the Kentucky Tragedy.” University Press of Kentucky. 2009.
• Gates, W. B. “William Gilmore Simms and the Kentucky Tragedy.” American Literature, vol. 32, no. 2, 1960, pp. 158–66. JSTOR, https://doi.org/10.2307/2922674
• “To the Public.” Woodstock Observer and Windsor and Orange County Gazette. Aug, 29, 1826. https://www.newspapers.com/image/489194545/?match=1&terms=Jereboam%200.%20Beauchamp

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This 2014 episode covers transgender activist Sylvia Rivera. She became famous, in part, for participating in the Stonewall riots, and she spent her life campaigning bravely, stridently and vocally for the rights of gay and transgender people.

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