Green Wave, the nickname of the sports teams of Tulane University, was adopted during the 1920 season, after a song titled "The Rolling Green Wave" was published in the Tulane Hullabaloo in 1920. From 1893 to 1919 the athletic teams of Tulane were officially known as "The Olive and Blue," for the official school colors. In 1919 the Tulane Weekly, one of Tulane's many student newspapers at the time and the predecessor of the Tulane Hullabaloo, began referring to the football team as the "Greenbacks," an unofficial nickname that also led to another: the "Greenies."