1807 – Henry Blair, born this year in Montgomery County, Maryland, U.S.A. He was the second African American inventor ever to receive a patent.
1821 – Found out that actually Thomas Jennings received a patent for his invention of the dry cleaning process.
1834 – Received his first patent on the 14th of October for his invention of the corn seed planter.
1836 – He later received another patent for the invention of the cotton planter.
1860 – Died this year.