The immediate cause was Lincoln's election, but it had been brewing since before the Missouri Compromise. Slavery had become the most divisive aspect of American political life. Had it been dealt with at the Constitutional Convention, the civil war need not have happened, but without the slavery compromise then and there, America may not have been created as a constitutional republic.
The secession of South Carolina from the Union
The election of Abraham Lincoln in November 1860.
Abraham Lincoln faced the secession crisis that erupted into the Civil War.
The Missouri Crsis was about the issuse that slavery has caused.
Lincoln's call for 75,000 troops after South Carolina fired on Fort Sumter.
Federal Right
The secession of South Carolina from the Union
slvery caused the secession of texas.
1834
The election of Lincoln as president.
President Jefferson Davis.
Secession from the union
The election of Abraham Lincoln in November 1860.
The Russians caused it by blockading Berlin.
The American oil consumption was one of the reason that caused the 1970's energy crisis.
Iridium is the rare element that is said to have caused an ancient health crisis (extinction of the dinosaurs).
Tariffs