What does it take to make history? From Susan B. Anthony to Rosa Parks to Ruth Bader Ginsburg, there’s been no shortage of women who weren’t afraid to fight the good fight and change the world. In celebration of Women’s History Month, we’re putting the spotlight on the contributions of women in history by honoring the pioneers who made major advances in civil rights, women’s suffrage, racial equality, environmental justice, reproductive rights, and much, much more. Ahead, we’ve rounded up the stories behind some of the most influential women, ever. And make sure to check back often; we’re adding a new name to the list every day in March.