I have endeavored in this book to describe in detail the chief points that were enacted on the most important battlefields of that War. As those who participated in that War are now fast passing away, and the time will soon be here when they will only be remembered by their deeds of valor on these battlefields, I deem it only fit and proper that those in all walks of life should know more of these battles in detail and of those who participated in them. I think you will get this information from this book, as it is written specially with this view. It should specially appeal to teachers and students who can use it in a supplementary way in connection with the study of history of this period. I now commend this book to you, and trust that it may be the means of giving you more light on this the greatest civil war of all time, and that it may help to lengthen in the minds of the American people their remembrance of those who participated in it. FIRST BATTLE OF BULL RUN At the beginning of July, 1861, the Federals had 30,000 men encamped along the Potomac near the heights of Arlington under the general command of General Winfield Scott, who was a veteran of the war of 1812, as well as the Mexican war, but who was at this time aged and infirm, and remained in Washington, and Brigadier-General Irvin McDowell was in immediate command of the army. Another 20,000 men lay at Martinsburg under General Patterson who like Scott was a veteran of the war of 1812 and of the Mexican war. At Manassas Junction, about thirty miles from Washington, lay the Confederate army under Brigadier-General Beauregard. General Joseph E. Johnston was in command of 9,000 men in the Shenandoah Valley. Johnston and Beauregard, as well as McDowell, had with Scott and Patterson battled at the gates of Mexico. General Scott gave orders to McDowell to move against Beauregard and on the 16th day of July the army, with waving banners and lively hopes of victory, and with "On to Richmond" as their battle cry, moved on Manassas. General McDowell brought his army to a halt at Centreville within seven miles of Manassas. Beauregard was apprised of the coming of the Federals. The stream of Bull Run, from which the first great battle of the war derived its name, flowed between the two armies. Patterson failed to detain Johnston in the valley, and General Johnston reached Manassas with his army on the afternoon of the 20th. General Longstreet was also there, who some months later played a distinctive part in the struggle at Gettysburg and in the death grapple of Lee and Grant in the wilderness.