...nable to come to his relief, and on the 4th of July, Independence Day, he surrendered Vicksburg, with its garrison of nearly thirty-two thousand men, ordnance and stores. As Grant had fore. seen, Port Hudson surrendered as soon as the fall of Vicksburg became known, and the great river was once more open from St. Louis to the sea. In the north the victory of Gettysburg was won on the same day on whic...