'Peanuts,' one of the world's most popular cartoons, pushed for Title IX in the 1970s

https://www.npr.org/2022/06/26/ [login to see] /peanuts-one-of-the-worlds-most-popular-cartoons-pushed-for-title-ix-in-the-1970s
Title IX was not tremendously popular with everyone when it first passed in 1972. The legislation, which bans sex-based discrimination in schools and sports funded by the federal government, was originally opposed by the NCAA, which lobbied against it. It was ignored or minimized by athletic departments at many state-funded schools and universities. But Title IX found ardent support in the funny pages.

Charles Schulz, the creator of Peanuts, passionately believed in girls' and women's sports. Arguably the most popular cartoonist of his day, he used his platform to promote Title IX, with characters such as Lucy, Marcie and Peppermint Patty cheering on the legislation - and top women athletes of the era.