This was the monumental event of the war, perhaps the wisest thing President Lincoln ever did or ever could do. In after years it will perhaps be regarded as the greatest event of the century. Few men in all history have had an opportunity of doing a deed of so vast and far-reaching importance. Emancipation was quickly followed by the enlistment of negroes, or "freedmen" as they were now called, as soldiers in the armies of the Union. During the year 1863 more than fifty thousand of them, and before the end of the war nearly two hundred thousand, had enlisted under the banner of freedom. They were good soldiers, and on many a battlefield they fought with an unflinching courage. CHAPTER XXIV. MORE ABOUT THE WAR FOR THE UNION. =312. Union Defeat at Chancellorsville.=--Now let us return to our narrative of a few of the prominent military operations of the war. In May, 1863, the army of the Potomac, under General Hooker, moved southward from Washington. At Chancellorsville it was met by a Confederate force under Generals Lee and Jackson. The battle lasted two days, and was disastrous to the Union arms; in fact, the worst defeat of the war. It marked the zenith of Confederate success. In this battle "Stonewall" Jackson, so called from his splendid firmness, one of the ablest of the Southern generals, was mortally wounded. [Illustration: "STONEWALL" JACKSON.] =313. The Mighty Struggle at Gettysburg.=--General Lee, proud of this success, now resolved to lead his army into the North. Sweeping past Washington and across Maryland, he pushed up into Pennsylvania, the whole country around being terrified at his approach, especially Baltimore and Philadelphia, both of which cities were threatened. Lee had now eighty thousand soldiers, the finest army the South ever possessed. The army of the Potomac, under the command of General Meade, whom Grant called the right man in the right place, followed closely. The two defiant armies met at Gettysburg, where occurred the most momentous battle ever fought on this continent. It lasted three days, July 1-3, 1863. The first day's fighting ended in favor of the Confederates. On the second day their desperate efforts to drive the Union forces from their positions were repelled, but with an enormous loss on each side. [Illustration: GENERAL MEADE.] On the third day came the final test. The brave Confederate General Pickett led many thousands of soldiers over an open plain in a most desperate charge to break the Union center. On, on they came, their ranks now torn through and through by Union shot and shell, but still on they charged. Drawing nearer, up they rushed to the Union line with the familiar Southern yell, and with frantic fury dashed upon our firm-set ranks. Our men wavered with the mighty shock and for a moment fell back, but instantly rallied with the Union cheer.