When he became the 16th President of the United states in March 1861, Abraham Lincoln
declared that he wanted to abolish slavery.
His ideas were not popular in the Southern States where there were lots of Black slaves working in
the plantations. Moreover, Southerners were scared that these 200 000 free slaves would take
control of the country.
So the Southern States seceded from the Union and the Civil War began in April 1861. The North,
which was anti-slavery was opposed to the South which was pro-slavery.
The North won the war in 1865 and the 13th Amendment of the Constitution was written to
officially abolish slavery: It was the Emancipation Proclamation.
Lincoln was assassinated shortly afterwards as he was attending a play with his wife.