The Developing History of Monarch Butterflies

This 2020 episode covers the Public Universal Friend, who described themself as a genderless spirit sent by God to inhabit the resurrected body of a woman named Jemima Wilkinson. See omnystudio.com/listener for privacy information.

29 Marras 33min

Tracy and Holly talk about their recent podcast trip to Morocco with listeners, arranged by Defined Destinations. See omnystudio.com/listener for privacy information.

28 Marras 28min

The second installment of our episode on Charles Sumner picks up in the wake of his controversial antiwar speech. He next argued a school integration case before the Massachusetts supreme judicial court. Research: "Sumner, Charles (1811-1874)." Encyclopedia of World Biography, Gale, 1998. Gale Academic OneFile, link.gale.com/apps/doc/A148425674/GPS?u=mlin_n_melpub&sid=bookmark-GPS&xid=95485851. Accessed 31 Oct. 2025. “Roberts v. City of Boston, 5 Cush. 198, 59 Mass. 198 (1849).” Caselaw Access Project. Harvard Law School. https://case.law/caselaw/?reporter=mass&volume=59&case=0198-01 “The Prayer of One Hundred Thousands.” https://www.senate.gov/artandhistory/history/resources/pdf/PrayerofOneHundredThousand.pdf Alexander, Edward. “The Caning of Charles Sumner.” Battlefields.org. 3/6/2024. https://www.battlefields.org/learn/articles/caning-charles-sumner Beecher, Henry Ward. “Charles Sumner.” Advocate of Peace (1847-1884) , MAY, 1874. Via JSTOR. https://www.jstor.org/stable/27905613 Berry, Stephen and James Hill Welborn III. “The Cane of His Existence Depression, Damage, and the Brooks–Sumner Affair.” Southern Cultures , Vol. 20, No. 4 (WINTER 2014). Via JSTOR. https://www.jstor.org/stable/10.2307/26217562 Boston African American National Historic Site. “Abiel Smith School.” https://www.nps.gov/boaf/learn/historyculture/abiel-smith-school.htm Boston African American National Historic Site. “The Sarah Roberts Case.” https://www.nps.gov/articles/the-sarah-roberts-case.htm Child, Lydia Maria. “Letters of Lydia Maria Child.” Houghton, Mifflin and Company. 1883. https://archive.org/details/lettersoflydiam00chil Commonwealth Museum. “Roberts v. The City of Boston, 1849.” https://www.sec.state.ma.us/divisions/commonwealth-museum/exhibits/online/freedoms-agenda/freedoms-agenda-8.htm Frasure, Carl M. “Charles Sumner and the Rights of the Negro.” The Journal of Negro History , Apr., 1928, Vol. 13, No. 2 (Apr., 1928). Via JSTOR. https://www.jstor.org/stable/2713959 Gershon, Livia. “Political Divisions Led to Violence in the US Senate in 1856.” JSTOR Daily. 1/7/2021. https://daily.jstor.org/violence-in-the-senate-in-1856/ History, Art and Archives. “South Carolina Representative Preston Brooks’s Attack on Senator Charles Sumner of Massachusetts.” U.S. House of Representatives. https://history.house.gov/Historical-Highlights/1851-1900/South-Carolina-Representative-Preston-Brooks-s-attack-on-Senator-Charles-Sumner-of-Massachusetts/ Longfellow House Washington's Headquarters National Historic Site. “An Era of Romantic Friendships: Sumner, Longfellow, and Howe.” https://www.nps.gov/articles/an-era-of-romantic-friendships-sumner-longfellow-and-howe.htm Lyndsay Campbell; The “Abolition Riot” Redux: Voices, Processes. The New England Quarterly 2021; 94 (1): 7–46. doi: https://doi.org/10.1162/tneq_a_00877 Mahr, Michael. “Sumner vs. Cane.” National Museum of Civil War Medicine. 5/24/2023. https://www.civilwarmed.org/sumner-vs-cane/ Meriwether, Robert L. “Preston S. Brooks on the Caning of Charles Sumner.” The South Carolina Historical and Genealogical Magazine , Jan., 1951, Vol. 52, No. 1 (Jan., 1951). Via JSTOR. https://www.jstor.org/stable/27571254 Mount Auburn Cemetery. “Charles Sumner (1811-1874): U.S. Senator, Abolitionist, & Orator.” https://mountauburn.org/notable-residents/charles-sumner-1811-1874/ National Park Service. “Charles Sumner and Romantic Friendships.” https://www.nps.gov/articles/000/charles-sumner-and-romantic-friendships.htm Potenza, Bob. “Charles Sumner.” West End Museum. https://thewestendmuseum.org/history/era/west-boston/charles-sumner/ Ruchames, Louis. “Charles Sumner and American Historiography.” The Journal of Negro History , Apr., 1953, Vol. 38, No. 2 (Apr., 1953). https://www.jstor.org/stable/2715536 Senate Historical Office. “Senate Stories | Charles Sumner: After the Caning.” United States Senate. 5/4/2020. https://www.senate.gov/artandhistory/senate-stories/charles-sumner-after-the-caning.htm Sinha, Manisha. “The Caning of Charles Sumner: Slavery, Race, and Ideology in the Age of the Civil War.” Journal of the Early Republic , Summer, 2003, Vol. 23, No. 2 (Summer, 2003). Via JSTOR. https://www.jstor.org/stable/3125037 Sumner, Charles. “Barbarism of Slavery.” 6/4/1860. https://dotcw.com/documents/barbarism_of_slavery.htm Sumner, Charles. “Freedom National; Slavery Sectional.” 8/26/1852. https://en.wikisource.org/wiki/Freedom_National;_Slavery_Sectional Sumner, Charles. “The equal rights of all.” Washington, Printed at the Congressional globe office. 1866. https://archive.org/details/equalrightsofall00sumn Tameez, Zaakir. “Charles Sumner: Conscience of a Nation.” Henry Holt and Co. 2025. United States Senate. "The Crime Against Kansas.” https://www.senate.gov/artandhistory/history/minute/The_Crime_Against_Kansas.htm United States Senate. “REPORT.” 5/28/1856. https://www.senate.gov/artandhistory/history/resources/pdf/SumnerInvestigation1856.pdf United States Senate. “The Caning of Senator Charles Sumner.” https://www.senate.gov/artandhistory/history/minute/The_Caning_of_Senator_Charles_Sumner.htm Various, “Southern Newspapers Praise the Attack on Charles Sumner,” SHEC: Resources for Teachers, accessed October 31, 2025, https://shec.ashp.cuny.edu/items/show/1548. See omnystudio.com/listener for privacy information.

26 Marras 39min

The first installment of the deeper examination of Charles Sumner's life begins with his early years, including his close relationships with Henry Wadsworth Longfellow and Samuel Gridley Howe. Research: "Sumner, Charles (1811-1874)." Encyclopedia of World Biography, Gale, 1998. Gale Academic OneFile, link.gale.com/apps/doc/A148425674/GPS?u=mlin_n_melpub&sid=bookmark-GPS&xid=95485851. Accessed 31 Oct. 2025. “Roberts v. City of Boston, 5 Cush. 198, 59 Mass. 198 (1849).” Caselaw Access Project. Harvard Law School. https://case.law/caselaw/?reporter=mass&volume=59&case=0198-01 “The Prayer of One Hundred Thousands.” https://www.senate.gov/artandhistory/history/resources/pdf/PrayerofOneHundredThousand.pdf Alexander, Edward. “The Caning of Charles Sumner.” Battlefields.org. 3/6/2024. https://www.battlefields.org/learn/articles/caning-charles-sumner Beecher, Henry Ward. “Charles Sumner.” Advocate of Peace (1847-1884) , MAY, 1874. Via JSTOR. https://www.jstor.org/stable/27905613 Berry, Stephen and James Hill Welborn III. “The Cane of His Existence Depression, Damage, and the Brooks–Sumner Affair.” Southern Cultures , Vol. 20, No. 4 (WINTER 2014). Via JSTOR. https://www.jstor.org/stable/10.2307/26217562 Boston African American National Historic Site. “Abiel Smith School.” https://www.nps.gov/boaf/learn/historyculture/abiel-smith-school.htm Boston African American National Historic Site. “The Sarah Roberts Case.” https://www.nps.gov/articles/the-sarah-roberts-case.htm Child, Lydia Maria. “Letters of Lydia Maria Child.” Houghton, Mifflin and Company. 1883. https://archive.org/details/lettersoflydiam00chil Commonwealth Museum. “Roberts v. The City of Boston, 1849.” https://www.sec.state.ma.us/divisions/commonwealth-museum/exhibits/online/freedoms-agenda/freedoms-agenda-8.htm Frasure, Carl M. “Charles Sumner and the Rights of the Negro.” The Journal of Negro History , Apr., 1928, Vol. 13, No. 2 (Apr., 1928). Via JSTOR. https://www.jstor.org/stable/2713959 Gershon, Livia. “Political Divisions Led to Violence in the US Senate in 1856.” JSTOR Daily. 1/7/2021. https://daily.jstor.org/violence-in-the-senate-in-1856/ History, Art and Archives. “South Carolina Representative Preston Brooks’s Attack on Senator Charles Sumner of Massachusetts.” U.S. House of Representatives. https://history.house.gov/Historical-Highlights/1851-1900/South-Carolina-Representative-Preston-Brooks-s-attack-on-Senator-Charles-Sumner-of-Massachusetts/ Longfellow House Washington's Headquarters National Historic Site. “An Era of Romantic Friendships: Sumner, Longfellow, and Howe.” https://www.nps.gov/articles/an-era-of-romantic-friendships-sumner-longfellow-and-howe.htm Lyndsay Campbell; The “Abolition Riot” Redux: Voices, Processes. The New England Quarterly 2021; 94 (1): 7–46. doi: https://doi.org/10.1162/tneq_a_00877 Mahr, Michael. “Sumner vs. Cane.” National Museum of Civil War Medicine. 5/24/2023. https://www.civilwarmed.org/sumner-vs-cane/ Meriwether, Robert L. “Preston S. Brooks on the Caning of Charles Sumner.” The South Carolina Historical and Genealogical Magazine , Jan., 1951, Vol. 52, No. 1 (Jan., 1951). Via JSTOR. https://www.jstor.org/stable/27571254 Mount Auburn Cemetery. “Charles Sumner (1811-1874): U.S. Senator, Abolitionist, & Orator.” https://mountauburn.org/notable-residents/charles-sumner-1811-1874/ National Park Service. “Charles Sumner and Romantic Friendships.” https://www.nps.gov/articles/000/charles-sumner-and-romantic-friendships.htm Potenza, Bob. “Charles Sumner.” West End Museum. https://thewestendmuseum.org/history/era/west-boston/charles-sumner/ Ruchames, Louis. “Charles Sumner and American Historiography.” The Journal of Negro History , Apr., 1953, Vol. 38, No. 2 (Apr., 1953). https://www.jstor.org/stable/2715536 Senate Historical Office. “Senate Stories | Charles Sumner: After the Caning.” United States Senate. 5/4/2020. https://www.senate.gov/artandhistory/senate-stories/charles-sumner-after-the-caning.htm Sinha, Manisha. “The Caning of Charles Sumner: Slavery, Race, and Ideology in the Age of the Civil War.” Journal of the Early Republic , Summer, 2003, Vol. 23, No. 2 (Summer, 2003). Via JSTOR. https://www.jstor.org/stable/3125037 Sumner, Charles. “Barbarism of Slavery.” 6/4/1860. https://dotcw.com/documents/barbarism_of_slavery.htm Sumner, Charles. “Freedom National; Slavery Sectional.” 8/26/1852. https://en.wikisource.org/wiki/Freedom_National;_Slavery_Sectional Sumner, Charles. “The equal rights of all.” Washington, Printed at the Congressional globe office. 1866. https://archive.org/details/equalrightsofall00sumn Tameez, Zaakir. “Charles Sumner: Conscience of a Nation.” Henry Holt and Co. 2025. United States Senate. "The Crime Against Kansas.” https://www.senate.gov/artandhistory/history/minute/The_Crime_Against_Kansas.htm United States Senate. “REPORT.” 5/28/1856. https://www.senate.gov/artandhistory/history/resources/pdf/SumnerInvestigation1856.pdf United States Senate. “The Caning of Senator Charles Sumner.” https://www.senate.gov/artandhistory/history/minute/The_Caning_of_Senator_Charles_Sumner.htm Various, “Southern Newspapers Praise the Attack on Charles Sumner,” SHEC: Resources for Teachers, accessed October 31, 2025, https://shec.ashp.cuny.edu/items/show/1548. See omnystudio.com/listener for privacy information.

24 Marras 35min

This 2019 episode covers Thomas Cook, a pioneer of the idea of a travel agency to manage tourist holidays. But Cook was initially motivated by his support of the temperance movement and his deeply held religious beliefs. See omnystudio.com/listener for privacy information.

22 Marras 28min

Tracy and Holly talk about the proclivity for destruction that was part of the balloon craze. They also discuss cat trees and how hard it is to find one that's cute. See omnystudio.com/listener for privacy information.

21 Marras 24min

Cat litter, it could be argued, kicked off the pet products industry. After its invention in the 1940s, other inventors started to come up with products that today are standard in the homes of people with pets. Research: Caminiti, Kasey. “Inside the Secret Lives of Pets With Allen Simon.” DuJour. https://dujour.com/life/allen-simon-founder-wee-wee-pad-pet-products/ “Clays.” U.S. Geological Survey. https://pubs.usgs.gov/periodicals/mcs2025/mcs2025-clays.pdf Crow, Frank. L. “Cat Tree.” Nov. 25, 1969. https://patentimages.storage.googleapis.com/65/fa/30/1290601d5476ab/US3479990.pdf Edward Lowe Foundation. https://edwardlowe.org/ Gross, Daniel A. “How Kitty Litter went from happy accident to $2 billion industry.” Washington Post. Feb. 2, 2015. https://www.washingtonpost.com/national/health-science/you-wont-believe-how-old-that-kitty-litter-is/2015/02/02/9ecac9ea-a1b4-11e4-903f-9f2faf7cd9fe_story.html Holding, Ray. “Cassopolis Man Valet for 10,000 Cats.” The Kalamazoo Gazette. Sept. 4, 1955. https://www.newspapers.com/image/1145480706/?match=1&terms=Ed%20Lowe%20Kitty%20Litter “Kitty Litter.” (ad) The Ann Arbor News. Feb. 16, 1955. https://www.newspapers.com/image/1178883937/?match=1&terms=Ed%20Lowe%20Kitty%20Litter “Kitty Litter Maker Selling Operations.” The New York Times. Sept. 13, 1990. https://www.nytimes.com/1990/09/13/business/company-news-kitty-litter-maker-selling-operations.html “New Boon for Cat Owners.” Delaware County Daily Times. Nov. 16, 1949. https://www.newspapers.com/image/53207968/?match=1&terms=Ed%20Lowe%20Kitty%20Litter “PetProducts.com | CEO Allen Simon & Kevin Yamano, VP Business Development | Innovators.” LilaMax Media. April 23, 2019. https://www.youtube.com/watch?v=TsHhyEcz-pQ Simon, Allen. “Allen Simon.” LinkedIn profile: https://www.linkedin.com/in/allen-simon-592115111/ Simon, Allen. “Dog Toy.” U.S. Patent Office. Dec. 16, 2008. https://patentimages.storage.googleapis.com/40/31/65/61af50ca84b654/USD583113.pdf Simon, Allen. “Scoop for Cat Littler.” U.S. Patent Office. Jan. 19, 1993. https://patentimages.storage.googleapis.com/c2/f4/01/b378f00dd92e8c/USD332675.pdf Simon, Allen. “Bristled Grooming Glove.” U.S. Patent Office. Jan. 28, 2014. https://patentimages.storage.googleapis.com/b6/83/22/143c9b9392d608/USD698159.pdf Thomas, Robert Mcg., Jr. “Edward Lowe Dies at 75; a Hunch Led Him to Create Kitty Litter.” New York Times. Oct. 6, 1995. https://www.nytimes.com/1995/10/06/us/edward-lowe-dies-at-75-a-hunch-led-him-to-create-kitty-litter.html United Press International. “Ed Lowe Owes His Fortune to Kitty Litter.” L.A. Times Archive. June 16, 1985. https://www.latimes.com/archives/la-xpm-1985-06-16-sp-2907-story.html “U.S. pet ownership statistics.” American Veterinary Medical Association. 2024. https://www.avma.org/resources-tools/reports-statistics/us-pet-ownership-statistics See omnystudio.com/listener for privacy information.

19 Marras 31min

Ballooning became a huge fad starting in the late 18th century, and there was a surprising amount of rioting associated with it. Fervor, excitement, and intoxication in some instances, meant that balloon events were prone to get out of control. Research: Bond, Elizabeth Andrews. “Popular Science and Public Participation.” From The Writing Public: Participatory Knowledge Production in Enlightenment and Revolutionary France. Cornell University Press. 2021. https://www.jstor.org/stable/10.7591/j.ctv310vktg.8 Branson, Susan. “Scientific Americans.” Cornell University Press, 2022. Cornell University Press, 2022. Coxwell, Henry Tracey. “My Life and Balloon Experiences.” W.H. Allen. 1889. https://archive.org/details/mylifeandballoo02coxwgoog/ Daily National Intelligencer. “The Balloon, and Conflagration of Vauxhall.” 9/14/1819. https://www.loc.gov/resource/sn83026172/1819-09-14/ed-1/?sp=2&q=vauxhall&r=0.48,-0.027,0.621,0.225,0 Franklin, Benjamin. “Benjamin Franklin to Ingenhousz, 16 January 1784.” https://founders.archives.gov/documents/Franklin/01-41-02-0310#BNFN-01-41-02-0310-fn-0005 “Hot-Air Balloon: Jean-François Janinet (1752–1814).” https://www.getty.edu/publications/artists-things/things/hot-air-balloon/#fnref8 Gillespie, Richard. “Ballooning in France and Britain, 1783-1786: Aerostation and Adventurism.” Isis, Vol. 75, No. 2 (June, 1984). https://www.jstor.org/stable/231824 Glaisher, James. “Travels in the Air.” R. Bentley. 1871. https://archive.org/details/ldpd_7245144_000 Holman, Brett. “The Melbourne balloon riot of 1858.” Airminded. 3/23/2017. https://airminded.org/2017/03/23/the-melbourne-balloon-riot-of-1858/ Jackson, Joseph. “Vauxhall Garden.” The Pennsylvania Magazine of History and Biography. Vol. LVII. No. 4. 1933. Keen, Paul. “The ‘Balloonomania’: Science and Spectacle in 1780s England.” Eighteenth-Century Studies , Summer, 2006, Vol. 39, No. 4 (Summer, 2006). https://www.jstor.org/stable/30053707 Magazine Monitor. “Victorian Strangeness: The great balloon riot of 1864.” BBC. 8/9/2014. https://www.bbc.com/news/blogs-magazine-monitor-28674654 Robbins, John. “Up in the Air: Balloonomania and Scientific Performance.” Eighteenth-Century Studies, Vol. 48, No. 4, Special Issue: Performance. Summer 2015. Via JSTOR. https://www.jstor.org/stable/24690309 Robson, David. “The Victorians who flew as high as jumbo jets.” BBC. 4/20/2016. https://www.bbc.com/future/article/20160419-the-victorians-who-flew-as-high-as-jets Smith, Zoe. “Disaster at 37,000 feet.” University of Cambridge. https://www.cam.ac.uk/stories/balloon-disaster Soth, Amelia. “Hot Air Balloon Launch Riot!” JSTOR Daily. 2/3/2022. https://daily.jstor.org/hot-air-balloon-launch-riot/ Sparrow, Jeff. “Wrath and awe: a short history of balloons and their power to fire up mob fury.” The Guardian. 2/14/2023. https://www.theguardian.com/commentisfree/2023/feb/15/wrath-and-awe-a-short-history-of-balloons-and-their-power-to-fire-up-mob-fury Sydney Morning Herald. “The Balloon Riot in the Domain: Death of Thomas Downs.” 12/19/1856. https://trove.nla.gov.au/newspaper/article/12990254 Sydney Morning Herald. “The Sydney Balloon.” Trove. 12/16/1856. https://trove.nla.gov.au/newspaper/article/12990120 The Rhode-Island American. “Riotous Proceedigns.” 9/14/1819. https://www.loc.gov/resource/sn83025442/1819-09-14/ed-1/?sp=3&q=vauxhall&r=-0.14,1.265,0.686,0.248,0 Tucker, Jennifer. “Voyages of Discovery on Oceans of Air: Scientific Observation and the Image of Science in an Age of ‘Balloonacy.’” Osiris, 1996, Vol. 11, Science in the Field (1996). Via JSTOR. https://www.jstor.org/stable/301930 Wroth, Warwick. “Cremorne and the Later London Gardens.” London. Elliot Stock. 1907. See omnystudio.com/listener for privacy information.

17 Marras 35min