""The National Capital is Movable"" is a book written by L. U. Reavis in 1871 that presents a case for moving the national capital of the United States from its current location in Washington D.C. to the Mississippi Valley. The author argues that the current location of the capital is inconvenient, expensive, and prone to health hazards such as malaria. He suggests that moving the capital to the Mississippi Valley would provide a more central location...