April 16 – Grant turns his attention again towards Vicksburg by sending gunboats and transports to the region. He will eventually capture the city in a couple months. The city was deemed impregnable by the citizens, hailing it as the “Gibraltar of the West”.

April 17Gierson’s 600 mile cavalry raid begins in Mississippi in an effort to divert attention away from Grant’s gunboats near Vicksburg. 1,700 Union cavalry wound wreak havoc in Mississippi in a two week period.

April 27 – Union General Joe Hooker launches his Chancellorsville Campaign in Northern Virginia in an attempt to get around Lee’s left flank.

See the complete Civil War Timeline here.