History of South America

Which event led to the secession of Texas and other southern states?

The event that led to the secession of Texas and other southern states was the election of Abraham Lincoln as President of the United States in 1860. Lincoln was a member of the Republican Party, which was opposed to the expansion of slavery into new territories. His election was seen by many in the South as a threat to their way of life, and they began to take steps to secede from the Union.