Mount Rushmore still disputed on the basis of the 1868 Treaty of Fort Laramie (see section "Controversy" below). Among American settlers, the peak was known variously as Cougar Mountain, Sugarloaf Mountain, Slaughterhouse Mountain, and Keystone Cliffs. It was named Mount Rushmore during a prospecting expedition by Charles Rushmore, David Swanzey (husband of Carrie Ingalls), and Bill Challis. Historian Doane Robinson conceived the idea for Mount Rushmore in 1923 to promote tourism in South Dakota. In 1924, Robinson persuaded sculptor Gutzon Borglum to travel to the Black Hills region to ensure the carving could be accomplished. Borglum had been involved in sculpting the
Largest creative work It has 2.2 billion knots, measuring . Largest creative work The largest creative work is the largest or longest item in different fields of creative works. Some pieces were created with the specific intention of holding the record while others have been recognised for their size after completion. "The Mousetrap" has been running continuously in London since 1952. It has by far the longest initial run of any play in history, with more than 25,000 performances taking place, and the longest running show (of any type) of the modern era. The world's largest hand woven carpet is a Persian carpet