When did the confederates surrender?

There is no one date when all Confederate forces surrendered. General Robert E. Lee surrendered his Army on April 9, 1865 to General Grant. On April 26, 1865, General Joseph E. Johnson surrendered all armies in the states in his jurisdictions. That is generally considered the day the Confederates surrendered east of the Mississippi River. West of the Mississippi River had a lot less fighting. The Union Army planned to defeat the Confederate Army east of the Mississippi and then move west of the river. Even though there was some activity, west of the river was basically a holding action. On June 19, 1865, a ship sailed into Corpus Christi, Texas. The captain went to the court house, took down the Confederate flag, and ordered the Emancipation Proclamation be read from every courthouse. That day is generally considered the end of the Civil War. More battles would occur. A number of Indian Generals had sided with the Confederacy. One of them was the last to surrender. There is even the remote possibility that Chief Sitting Bull was fighting for the Confederacy. During the Civil War, he constantly attacked the tribes siding with the Union. He also killed General Custer, the general who killed the great Confederate General, Jeb Stuart.