Abraham Lincoln

Lincoln suspended the writ of habeas corpus in parts of the Union, allowing the military to arrest and detain suspected Confederate sympathizers without trial. This action was controversial and challenged civil liberties during wartime.

Lincoln signed the Homestead Act, granting 160 acres of public land to settlers for a small fee. This encouraged westward expansion and agricultural development, but also displaced Native American tribes.

Lincoln issued the Emancipation Proclamation, declaring slaves in Confederate states free. This shifted the Civil War's focus to ending slavery and allowed African Americans to join the Union Army.

Lincoln delivered the Gettysburg Address at the dedication of the Soldiers' National Cemetery. The speech redefined the Civil War as a struggle for national unity and equality, and became one of the most famous speeches in US history.

Lincoln was shot by John Wilkes Booth at Ford's Theatre in Washington, D.C., and died the next day. His assassination occurred just days after the Civil War ended, plunging the nation into mourning and affecting Reconstruction.