John Sedgwick moves his Union Sixth Corps through Fredericksburg to the base of Marye’s Heights.

Having been ordered by Union general Joseph Hooker to march west to Chancellorsville, John Sedgwick moves his Sixth Corps through Fredericksburg to the base of Marye’s Heights. An initial assault, led by John Newton’s division, is rebuffed, and Sedgwick’s withdraws to gather reinforcements.