Hill Valley High School was an educational institution in Hill Valley. It was built during the later years of the Great Depression and lasted in the original timeline at least up to 1985.
On October 25, 1985, Marty McFly and Jennifer Parker were caught arriving late by principal Stanford S. Strickland and were given tardy slips.
On November 7, 1955, while Marty and Dr. Emmett Brown were waiting in one of the school halls for George's class to end, Doc noticed that the clock there was ten seconds slow, muttering "You'd think a public school would at least have the correct time."
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