Union General W.T. Sherman marched his troops out of Atlanta in the afternoon, embarking on his "March to the Sea" across Georgia. Four army corps, the XV, XVII, XIV, and XX, around 62,000 men in total, moved in four parallel formations covering a swath of sixty miles. Living off the land, the march devastated central Georgia and came to an end five weeks later on December 21, 1864, with the Union's capture of Savannah. (By John Osborne)