This same subject was brought up in another post a while back. And yes, they do still teach garbage like this in some schools. Slavery and freeing the slaves were the furthermost thing on anyones mind when the war of the States started. President Buchanan wanted to free the slaves and the supreme court ruled that he couldn't take anyones property without due process, so he just let it drop. Before he decided to run for President, Lincoln was asked his feelings on slavery. He said he had none either way. As he was running for President he was asked again at a speech he was giving. He dodged the question by saying "all men were created equal",etc,etc. After he became President and he saw the United States was going deep in dept, he and Congress wanted to take over all of the souths economy and especially all the ports. The south didn't want that and started secession procedures. He assured the south that he wouldn't try to free the slaves if they didn't secede. Well, they did secede and the war started. Two years into the war, the subject of slavery got brought up again and as punishment, he started to try to free the slaves. The supreme court wouldn't let him. But on Jan. 1, 1865 he went ahead and made his famous Emancipation Declaration speech anyway. Everyone ignored it though because it was an illegal act by a President. Congress was contemplating impeachment when he was killed on April 14, 1865.
Proposal and Ratification
The thirteenth amendment to the Constitution of the United States was proposed to the legislatures of the several States by the Thirty-eighth Congress, on the 31st day of January, 1865, and was declared, in a proclamation of the Secretary of State, dated the 18th of December, 1865, to have been ratified by the legislatures of twenty-seven of the thirty-six States. The dates of ratification were: Illinois, February 1, 1865; Rhode Island, February 2, 1865; Michigan, February 2, 1865; Maryland, February 3, 1865; New York, February 3, 1865; Pennsylvania, February 3, 1865; West Virginia, February 3, 1865; Missouri, February 6, 1865; Maine, February 7, 1865; Kansas, February 7, 1865; Massachusetts, February 7, 1865; Virginia, February 9, 1865; Ohio, February 10, 1865; Indiana, February 13, 1865; Nevada, February 16, 1865; Louisiana, February 17, 1865; Minnesota, February 23, 1865; Wisconsin, February 24, 1865; Vermont, March 9, 1865; Tennessee, April 7, 1865; Arkansas, April 14, 1865; Connecticut, May 4, 1865; New Hampshire, July 1, 1865; South Carolina, November 13, 1865; Alabama, December 2, 1865; North Carolina, December 4, 1865; Georgia, December 6, 1865.
Ratification was completed on December 6, 1865.
That means that Lincoln was dead 8 months before the slaves were finally freed. He did a lot of good things while President, but having compassion for the slaves was a politically helpful after thought.