Tag Archives: Thomas L. Jennings

Black History Month – Thomas L. Jennings

This gallery contains 1 photo.

The Intellectual Revolution presents… Thomas L. Jennings (1791–1856) was the first African-American to  be granted a patent, March 03, 1821 (U.S. patent 3306x).  Jennings’ patent was for a dry cleaning process called “dry scouring”, which would go on to make modern-day dry cleaning possible. In … Continue reading

Gallery | Tagged , , , , , , , , , , | 7 Comments