Ratification of the 13th Amendment
On December 6, 1865, the United States ratified the 13th Amendment to the Constitution, which abolished slavery in the entire country. While Abraham Lincoln did not live to see its ratification, his advocacy and the Emancipation Proclamation were pivotal steps towards its establishment. The amendment formally ended the legal institution of slavery in the United States, representing a significant turning point in American history and laying the groundwork for future civil rights movements.