Delaware refuses to ratify the Thirteenth Amendment to the U.S. Constitution, delaying the criminalization of slavery until the amendment's national adoption on December 6, 1865. The amendment is ultimately ratified by Delaware on February 12, 1901, the 92nd anniversary of Abraham Lincoln's birth.

Delaware is a state in the Mid-Atlantic and South Atlantic regions of the United States. It borders Maryland to its south and west, Pennsylvania to its north, New Jersey to its northeast, and the Atlantic Ocean to its east. The state's name derives from the adjacent Delaware Bay, which in turn was…