"Each August 4, the U.S. Coast Guard celebrates its birthday. The Coast Guard is one of America's six armed forces and traces its founding to Aug. 4, 1790. That's when the first Congress authorized construction of 10 vessels to enforce tariff and trade laws, prevent smuggling, and protect the collection of federal revenue. Responsibilities added over the years include humanitarian duties such as aiding mariners in distress.” - Military.com Network