Beginning at 4:30 am on the 12th and continuing until the morning of the 13th, Confederate batteries along the shore of Charleston Harbor fire on Fort Sumter under the command of Major Robert Anderson. Anderson arranges a surrender with Texas Senator Louis Wigfall on the morning of the 13th.
The 54th Massachusetts, comprised primarily of free blacks from Massachusetts and Pennsylvania, attack Battery Wagner in Charleston Harbor, losing 30% of their men and forcing Quincey Gillmore to lay siege to the city. The film "Glory" is based on this action.