August 25

1868 The second oldest Wyoming patent is awarded to S.W.Y. Schimonsky of Cheyenne, Dakota Territory patented to improved Car-Brake on August 25, 1868.

1916 The National Park Service was established by law on August 25, 1916. At the time, Wyoming already had two areas to be managed by the Service, Yellowstone National Park established in 1872 and Devils Tower National Monument established in 1906.