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.
By: Jonathan Ramsey Gipson. The Invention. Thomas Jennings' patent was for a dry-cleaning process called dry scouring. Today, even though a great majority of America now has washers and dryers at home, Thomas L. Jennings was the inventor of Dry Cleaning. A little biography about Thomas L. Jennings Thomas L. Jennings was an African-American tradesman (a person involved with trading) and abolitionist(a person who favors the abolition of a practice or institution). He was a free black who operated a dry-cleaning business in New York City, New York, and was the first African American to be granted a patent