Originally, UTC's nickname was the "Moccasins." In the 1920s, it was represented by a snake (Water moccasin). A Native American image was then used into the 1990s, with a moccasin shoe being also used in the 1980s. In 1996, the university opted to cease the use of Native American imagery in favor of the Tennessee State bird, the mockingbird and railroad images, emphasizing the city's railroad heritage. So was born Scrappy the Mockingbird. From 1997 through 2007, Scrappy was shown riding a train, and a second logo had the name MOCS on the front of the engine (the "Cowcatcher" logo).