was a comedy-drama series, created by James L. Brooks
and airing on ABC
from 1969-1974, focusing on life at a typical American High School
in Los Angeles and set primarily in the American history class taught in the titular Room 222 by African-American teacher Pete Dixon (Lloyd Haynes).
In addition to being the first major success for Brooks (who would go on to develop many popular TV shows and films), and one of the first successful series set at a high school to appeal directly to teenagers, the series is best known today for two things: