of California school spirit. The Big "C" has its roots in an early 20th-century campus event called "Rush", which pitted the freshman and sophomore classes against each other in a race up Charter Hill that often developed into a wrestling match. It was eventually decided to discontinue Rush and, in 1905, the freshman and sophomore classes banded together in a show of unity to build "the Big C". Owing to its prominent position, the Big "C" is often the target of pranks by rival Stanford University students who paint the Big "C" red and also fraternities and sororities who paint it their organization's colors. One of the Rally Committee's functions is to repaint the Big "C" to its traditional color of King Alfred Yellow. Cal students invented the college football tradition of card stunts. Then known as Bleacher Stunts, they were first performed during the 1910 Big Game and consisted of two stunts: a picture of the Stanford Axe and a large blue "C" on a white background. The tradition is continued today by the Rally Committee in the Cal student section and incorporates complicated motions, for example tracing the Cal script logo on a blue background with an imaginary yellow pen. The California Victory Cannon, placed on Tightwad Hill overlooking the stadium, is fired before every football home game, after every score, and after every Cal victory. First used in the 1963 Big Game, it was originally placed on the sidelines before moving to Tightwad Hill in 1971. The only time the cannon ran out of ammunition was during a game against Pacific in 1991, when Cal scored 12 touchdowns. The Cal Mic Men, a standard at home football games, has recently expanded to involve basketball and volleyball. The traditional role comes from students holding megaphones and yelling, but now includes microphones, a dedicated platform during games, and the direction of the entire student section. Both men and women are allowed to fulfill the role, despite the name. Student housing Berkeley students are offered a variety of housing options, including university-owned or affiliated residences, private residences, fraternities and sororities, and cooperative housing (co-ops). University housing The university runs twelve different residence halls: seven undergraduate residence halls or complexes, both with and without themes; family student housing; re-entry student housing; and optional international student housing at the International House, built with a gift from John D. Rockefeller, Jr. and the