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.
Horace Greeley is sent to Canada to negotiate an end to the Civil War. Lincoln gives him broad powers to come to a settlement, only requiring that it include the restoration of the Union and a renunciation of slavery. The Confederates would not accept these conditions