Girls in Cape Town wearing miniskirts in 1965 while strolling through the neighborhood. Notice the horrified look on people's faces.
In 1967, Katherine Switzer, the first woman to run the Boston Marathon and one of the most influential figures in feminism, demonstrated courage by participating in the marathon even when women were not allowed to run.
The first female tattoo artist, Maud Wagner, covered her entire body with tattoos in 1907, when they were still considered taboo in society.
Italian racing driver and first woman to drive in Formula 1 races: Marla Teresa de Filippis
In 1906, British women were not allowed to vote, so protests began.
Votes for Women
American film actress Hedy Lamarr challenged the stereotype that beautiful women weren't intelligent enough for science.
(Note: In addition to being a Hollywood actress, she invented the radio-guided torpedo and improved the design of several aircraft for her aviator husband, Howard Hughes.)
The photo below was taken in 1957, when the United States Supreme Court ruled that it was illegal to segregate children in school according to their race.