Slave Trade Act of 1794 - Wikipedia
https://en.wikipedia.org/wiki/Slave_Trade_Act_of_1794TIL that George Washington signed the 1794 Slave Trade Act, which banned U.S. ships from participating in the Atlantic Slave Trade, as well as forbid the exportation of slaves for foreign sale. It was the first major piece of legislation against slavery passed by the United States government.
https://www.reddit.com/r/todayilearned/comments/118zkj4/til_that_george_washington_signed_the_1794_slave/