On December 6, 1978, Spain adopted its modern
constitution by referendum. It laid the foundation for
democratic government in the country after the death of dictator
Francisco Franco. The event is celebrated annually in Spain as
On December 6, 1865, the 13th
Amendment to the United States Constitution was
ratified, formally ending slavery in the United States.
Watch Professor Michael Vorenberg of Brown University discuss his 2001 book Final Freedom: The Civil War, the Abolition of Slavery and the Thirteenth Amendment.