May 1-4, 1863- The Battle of Chancellorsville, Virgina General Lee's greatest victory is marred by the mortal wounding of "Stonewall" Jackson,
who dies on May 10. Soon after, Lee asks Jefferson Davis for permission to invade the North and take the war out of Virginia.
May 18, 1863- The Siege of Vicksburg, Mississippi begins. Union forces under General Ulysses S. Grant attack Confederate defenses outside
the city on May 19-22. If Vicksburg falls, the Mississippi River will be completely controlled by the Union.
