The Royal Navy West Africa (Preventative) Squadron of the United Kingdom, under the command of Commodore George R. Collier, 1st Baronet, begins patrolling the west African coast to enforce the ban on the international slave trade.

       [added 12/18/2021]

Subsequent Events:

8/28/1833                   9/22/1862

References:

West Africa Squadron – Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/West_Africa_Squadron

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

Current U.s. National Debt:

$36,167,124,467,492

Source