From what other ppl have contributed and my own consideration, here's a list of PODs which could potentially have created alternate civil war scenarios pre-1861:
War of 1812- New England secession
1821- Maine/Missouri statehood discussion gets violent
1832 Nullification Crisis
1850- no Compromise reached over slavery
1855/56- more violent Bloody Kansas fighting
Anymore you guys can think of ?
War of 1812- New England secession
1821- Maine/Missouri statehood discussion gets violent
1832 Nullification Crisis
1850- no Compromise reached over slavery
1855/56- more violent Bloody Kansas fighting
Anymore you guys can think of ?