Pemberton placed his men with their backs to the Black River. When the U. S. attacked, Pemberton's line broke with most of the men crossing the Black River before the bridge was set on fire. Army of the Tennessee then spanned the Big Black, closing in on Vicksburg
Republican Convention is held in Chicago, Illinois. William H. Seward, Salmon P. Chase and Abraham Lincoln of Illinois are the leading contenders from a field of 12 candidates. Lincoln wins on the third ballot. Hannibal Hamlin of Maine, an outspoken, long-time abolitionist is chosen for vice-president.