Find five and tell them that it was the Republican Party that passed the 13th Amendment to the Constitution of the United States.
 

The 13th Amendment officially abolished slavery in the United States.

Lincoln's 1863 Emancipation Proclamation to free slaves applied only to territories not already under Union control, so it did not apply to the Border States. Border States refer to the five slave states (Delaware, Kentucky, Maryland, Missouri, and West Virginia) that bordered a free state but did not join the Confederacy. Lincoln and the Republicans were concerned that the Emancipation Proclamation (1863) would be seen as a temporary war measure, and so, they supported the Amendment as a means to guarantee the permanent abolition of slavery. At the time of its ratification, slavery remained legal only in Delaware, Kentucky, and Missouri. Maryland and West Virginia each changed their state constitution to prohibit slavery. Slavery in Kentucky, Missouri, and Delaware was not ended until ratification of the thirteenth amendment on December 18, 1865.