Kathrine Switzer ran the Boston Marathon in 1967 when women were not allowed to compete in it. She had to enter the race using her initials so they would think she was a man. During the race, one of the race officials tried to pull her off the track and rip her number off. Despite this she was able to finish the race in about four hours. 50 years later she ran the Boston Marathon again. wearing the same number 261. She is now and author and continues to inspire women, girls and men all over the world.