The Bucking Horse and Rider (BH&R) is a registered trademark of the U.S. state of Wyoming. In 1936, Wyoming trademarked the image for the state's license plates. However, the state's usage of the logo can be traced back to as early as 1918. Wyoming is popularly known as the "Cowboy State," in part because of the use of the bucking bronco as its symbol. The University of Wyoming at Laramie athletic teams are nicknamed the Cowboys and Cowgirls, both of which use the bucking horse and rider logo on their uniforms.