On December 6, 1865, the Thirteenth Amendment to the United States Constitution was ratified, banning slavery in all states and territories.
In 1917 on this date, Finland declared independence from Russia.
Vladimir Nabokov completed his controversial novel Lolita on the Sixth of December in 1953, and would soon find himself embroiled in censorship and related publishing difficulties, though with no trouble in the United States when it was eventually published by G. P. Putnam’s Sons in 1958.