Kathrine Switzer has always loved a challenge. In 1967, she decided to run the Boston Marathon, which was all men at the time. Though the race manager tried to pull her off the course, Kathrine pushed on and finished the race. Her accomplishment challenged the world's view of female athletes. Today, she's a marathon runner and women's sports advocate. This story is from the new Rebel Girls app! You can listen to more stories like this, PLUS all the podcast episodes you know and love. Just go to go.rebelgirls.com/dream-on and download for free! This podcast is a production of Rebel Girls and is based on the book series Good Night Stories for Rebel Girls. This story was produced by Giuliana Mayo. Sound design and mixing by Brian Skipworth. This story was written by Abby Sher and narrated by Marilyn Saidman. The Players in this story are Giuliana Mayo, Jim Kalin, Alicia Alunni, and Brian Skipworth. Our kid host is Roxy. Haley Dapkus is our Production Manager. Executive Producer is Katie Sprenger. Original theme music was composed and performed by Elettra Bargiacchi. A big thanks to the whole Rebel Girls team who makes this show possible! For more, visit rebelgirls.com. Until next time, stay REBEL!