After the war Sherman was in command of the military division of the Mississippi, with headquarters at St. Louis. He took especial interest in the development of the Northern and Southern Pacific railroads. When Grant was made General, July 25, 1866, Sherman was made Lieutenant-General. In 1869 when Grant became President, Sherman was made General, with the provision that the office should go to no other person. Sheridan was made Lieutenant-General with the same provision. From Nov. 10, 1871, to Sept. 17, 1872, General Sherman travelled abroad in Turkey, Russia, Austria, and Western Europe, and received distinguished honors. He kept full notes. After his return he published his memoirs in two volumes, which the _Nation_ characterises as "one of the most noteworthy examples of self-revealing in the whole range of autobiography." He received degrees from Harvard, Yale, Dartmouth, and Princeton colleges. To Harvard college he sent a large picture of himself, which now hangs in the library. He was much sought after in social circles, and was an interesting speaker and writer. Once when speaking on the American flag to the pupils of the Packer and Polytechnic Institutes in Brooklyn, he said of the "Stars and Bars," the Confederate flag, "They cut out the blue. They left heaven out of their flag, and so were destined to defeat." To the cadets at West Point he said: "When war comes you can have but one purpose--your country--and by your country I mean the whole country, not part of it." Everywhere he was outspoken, of simple manners, humorous, brave, unselfish, and comprehensive in mind and actions. "The two or three great captains in any age," says the _Nation_, "are alike in the supreme qualities which make a general. They have the unruffled presence of mind which makes their intellectual operations most sure and true in the greatest and most sudden peril, and the true greatness which makes the most momentous decision and unhesitating action under vast responsibility, as if these were the every day work of their lives. The present generation has in our army seen two such, Grant and Sherman. It is doubtful if it has seen a third." General Oliver O. Howard, who lost an arm under Sherman, writes, "Take him all in all, General Sherman was not only one of the greatest military geniuses in history, but a model of a kindly, generous, and faithful man in every position in life."