The New York Stock Exchange is not open on weekends. Stock Exchanges in America, Europe, and Asia follow the typical Monday to Friday schedule. However, in the Middle East the work week typically runs from Sunday through Thursday.
Thomas L. Jennings (1791 â February 12, 1856) was an African-American tradesman and abolitionist in New York City, New York. He operated and owned a tailoring and dry-cleaning business, and, on March 3,1821, he was granted patent 3306x for a dry scrub process as the first African American to be granted a patent.
For Thomas Jennings, none of this mattered because as a free man, not only was he able to receive a patent in 1821, but he was also able to utilize it for his financial gain. In fact, he made a fortune. What makes Jennings noteworthy is not just that he was an entrepreneur or that he received a patent, or even the fact that he became very wealthy.