Uploaded February 2026 | Updated September 2026, 2 weeks ago
Benjamin Banneker used math, astronomy, and publication to claim space in a country that tried to deny him authority. This episode follows his path from a Maryland farm to almanacs that carried his name across the young republic, and to the 1791 boundary survey work that helped set the lines of the new federal district.
What You’ll Learn
1. How Banneker became an astronomer without a formal scientific education and why an ephemeris inside an almanac mattered so much in the late 1700s.
2. What Banneker actually did in 1791 during Andrew Ellicott’s boundary work, and why later stories about his role in Washington’s design grew beyond the record.
3. How publishing changed his life by carrying his calculations, voice, and reputation into a wider public, starting with the 1792 almanac (issued in 1791) and continuing through 1797.
Resources and further reading
· National Park Service: Benjamin Banneker and the boundary survey (Jones Point) nps.gov/articles/000/nama-notebook-benjamin-banneker.htm
· Library of Congress: Banneker’s 1792 almanac record (issued 1791) loc.gov/item/98650590
· Encyclopedia Virginia: Banneker’s letter to Jefferson (Aug. 19, 1791) encyclopediavirginia.org/primary-documents/letter-from-benjamin-banneker-to-thomas-jefferson-august-19-1791
· Library of Congress: Jefferson’s reply to Banneker (Aug. 30, 1791) loc.gov/item/mcc.028
· Smithsonian Libraries & Archives: context on Banneker and later myths https://blog.library.si.edu/blog/2017/02/15/americas-first-known-african-american-scientist-mathematician/
· American Philosophical Society: Ellicott, Banneker, and boundary-survey context amphilsoc.org/news/surveyors-andrew-ellicott-benjamin-banneker-and-boundaries-nation-and-knowledge
· PBS: Banneker overview (includes Ellicott lending books/tools context) pbs.org/wgbh/aia/part2/2p84.html
· Smithsonian Magazine: discussion of Banneker’s almanacs and cultural impact smithsonianmag.com/blogs/smithsonian-books/2024/01/04/benjamin-bannekers-almanac-of-strange-dreams
🔗 Explore more on our website: mathsciencehistory.com 📚 To buy my book Hypatia: The Sum of Her Life on Amazon, visit https://a.co/d/g3OuP9h
🌍 Let’s Connect!Bluesky: https://bsky.app/profile/mathsciencehistory.bsky.social Instagram: instagram.com/math.science.history Facebook: facebook.com/mathsciencehistory LinkedIn: linkedin.com/company/math-science-history Threads: threads.com/@math.science.history Mastodon: https://mathsciencehistory@mathstodon.xyz YouTube: Math! Science! History! - YouTube Pinterest: pinterest.com/mathsciencehistory
🎧 Enjoying the Podcast?
☕ Support the Show: Coffee!! PayPal
Leave a review! It helps more people discover the show! Share this episode with friends & fellow history buffs! Subscribe on your favorite podcast platform
Check out our merch: mathsciencehistory.com/the-store
Music: All music is public domain and has no Copyright and no rights reserved. Selections from The Little Prince by Lloyd Rodgers
Ambient Documentary by Vira Miller at Pixabay
Hopeful by Maarten Schellekens at Pixabay
Nature Documentary by James Carter at Pixabay
Smooth Piano by Universefield at Pixabay
Until next time, carpe diem!
Benjamin Banneker used math, astronomy, and publication to claim space in a country that tried to deny him authority. This episode follows his path from a Maryland farm to almanacs that carried his name across the young republic, and to the 1791 boundary survey work that helped set the lines of the new federal district.
What You’ll Learn
1. How Banneker became an astronomer without a formal scientific education and why an ephemeris inside an almanac mattered so much in the late 1700s.
2. What Banneker actually did in 1791 during Andrew Ellicott’s boundary work, and why later stories about his role in Washington’s design grew beyond the record.
3. How publishing changed his life by carrying his calculations, voice, and reputation into a wider public, starting with the 1792 almanac (issued in 1791) and continuing through 1797.
Resources and further reading
· National Park Service: Benjamin Banneker and the boundary survey (Jones Point) nps.gov/articles/000/nama-notebook-benjamin-banneker.htm
· Library of Congress: Banneker’s 1792 almanac record (issued 1791) loc.gov/item/98650590
· Encyclopedia Virginia: Banneker’s letter to Jefferson (Aug. 19, 1791) encyclopediavirginia.org/primary-documents/letter-from-benjamin-banneker-to-thomas-jefferson-august-19-1791
· Library of Congress: Jefferson’s reply to Banneker (Aug. 30, 1791) loc.gov/item/mcc.028
· Smithsonian Libraries & Archives: context on Banneker and later myths https://blog.library.si.edu/blog/2017/02/15/americas-first-known-african-american-scientist-mathematician/
· American Philosophical Society: Ellicott, Banneker, and boundary-survey context amphilsoc.org/news/surveyors-andrew-ellicott-benjamin-banneker-and-boundaries-nation-and-knowledge
· PBS: Banneker overview (includes Ellicott lending books/tools context) pbs.org/wgbh/aia/part2/2p84.html
· Smithsonian Magazine: discussion of Banneker’s almanacs and cultural impact smithsonianmag.com/blogs/smithsonian-books/2024/01/04/benjamin-bannekers-almanac-of-strange-dreams
🔗 Explore more on our website: mathsciencehistory.com 📚 To buy my book Hypatia: The Sum of Her Life on Amazon, visit https://a.co/d/g3OuP9h
🌍 Let’s Connect!Bluesky: https://bsky.app/profile/mathsciencehistory.bsky.social Instagram: instagram.com/math.science.history Facebook: facebook.com/mathsciencehistory LinkedIn: linkedin.com/company/math-science-history Threads: threads.com/@math.science.history Mastodon: https://mathsciencehistory@mathstodon.xyz YouTube: Math! Science! History! - YouTube Pinterest: pinterest.com/mathsciencehistory
🎧 Enjoying the Podcast?
☕ Support the Show: Coffee!! PayPal
Leave a review! It helps more people discover the show! Share this episode with friends & fellow history buffs! Subscribe on your favorite podcast platform
Check out our merch: mathsciencehistory.com/the-store
Music: All music is public domain and has no Copyright and no rights reserved. Selections from The Little Prince by Lloyd Rodgers
Ambient Documentary by Vira Miller at Pixabay
Hopeful by Maarten Schellekens at Pixabay
Nature Documentary by James Carter at Pixabay
Smooth Piano by Universefield at Pixabay
Until next time, carpe diem!
