and themes are often completely unrelated to Princeton or the year the class graduated. Frequently, classes will hire musical groups, such as the Mummers, local high school marching bands, and a calliope, to lead them through the parade. The P-Rade begins on Nassau Street, enters the campus through FitzRandolph Gate in front of Nassau Hall, then proceeds through Cannon Green. Until the early 1990s, the route continued across McCosh Walk, through 1879 Arch, down Prospect Avenue, and finished on the baseball field. However, because of escalating public liability and insurance costs, the University moved the P-Rade route to stay only on the private property of the University. Some think the University also felt that too many alumni would stop off at their eating clubs on Prospect Avenue before finishing the P-Rade, and so it changed (and shortened) the route so that it does not leave campus. Currently, after crossing Cannon Green, the P-Rade proceeds down Elm Drive through the center of campus, and onto Poe Field. The Classes are arranged on both sides of the entire route, so that each cheers its elders, then falls in line to march past those younger. The P-rade ends as the graduating seniors race onto Poe Field under review of the President of the University, and are then formally welcomed as alumni/ae. Closing Ceremonies An outdoor orchestra concert and an elaborate evening fireworks display set to music, first held to celebrate the university's 250th anniversary in 1996, but repeated every year since by popular demand, is held the Saturday evening of Reunions. This can be seen as a closing ceremony of Reunions; however, the Reunions parties do not officially end until 2 a.m. that night, and low-key brunches are often held Sunday morning, at which point Reunions Weekend fades into Commencement Weekend. Unofficially, after the tents close, the party moves to the eating clubs on Prospect Avenue and will go until sunrise, especially Saturday night. Trivia As older classes march by in the P-rade, younger classes greet them by shouting an old, traditional Princeton cheer called a locomotive. The format of the cheer (for the Class of 2008, for example) is "Hip! Hip! Rah! Rah! Rah! Tiger! Tiger! Tiger! Sis! Sis! Sis! Boom! Boom! Boom! Ah! Oh-Eight! Oh-Eight! Oh-Eight!". The older class then traditionally returns the locomotive cheer to the younger class. This is a variant on one of the oldest college cheers, the