1849
Harriet Tubman escapes. Harriet Tubman escaped slavery in Maryland. She later returned again and again to lead others to freedom.
Wikipedia: Harriet TubmanPhoto: Powelson, Benjamin F. 1823 - 1885 / Wikimedia Commons (Public domain)
On this day
17 September in history.
5 moments from 1543 to 1991: discovery, creativity and courage, each with a source to read more.
5 moments
More from 17 September
1543
The first Finnish book
Mikael Agricola published the Abckiria, an ABC book and the first book in Finnish.
Wikipedia: AbckiriaWikipedia: Mikael Agricola
Photo: Albert Edelfelt / Wikimedia Commons (Public domain)
1683
Tiny animals
Antonie van Leeuwenhoek wrote to the Royal Society about tiny "animalcules" he saw in scrapings from teeth, the first description of bacteria.
Wikipedia: Antonie van Leeuwenhoek
Photo: Jan Verkolje / Wikimedia Commons (Public domain)
1961
A roof that opens
The Civic Arena in Pittsburgh opened, the world's first sports arena with a retractable roof.
Wikipedia: Civic Arena (Pittsburgh)
Photo: Derek Jensen ( Tysto ) / Wikimedia Commons (Public domain)
1991
Linux 0.01
Linus Torvalds released the first version of the Linux kernel online.
Photo: Krd (photo) Von Sprat (crop/extraction) / Wikimedia Commons (CC BY-SA 4.0)
Moments chosen for discovery, creativity and courage. Each one links to a source where you can read more; photos are credited to their owners.