Caitlyn Jenner has become one of the most visible transgender people in the world. Known largely for an astonishing performance at the 1976 Olympics where she earned a gold medal, and the reality television career that followed. Caitlyn recently shared another aspect of herself with us: she’s a transgender woman. Caitlyn is using her media platform to teach people more about what it means to be transgender — to live as someone whose deep, internal sense of their own gender does not match the sex they were assigned at birth.