Robert Stewart, Viscount Castlereagh, Foreign Secretary of the United Kingdom, and Hendrik Fagel, Minister of State, of the Kingdom of the United Netherlands—without a civil war—sign the 1813 Convention of London, banning the international slave trade.

       [added 12/11/2021]

Subsequent Events:

9/23/1817                  9/22/1862              

References:

CHRONOLOGY: Who banned slavery when? | Reuters
www.reuters.com/article/idUSEIC16869120070321

Current U.s. National Debt:

$36,169,520,000,045

Source