Ask the girls, Juliette Gordon Low always said when a problem came up. They’ll know what’s best.

But in 1912, no one thought that children should be listened to. No one except Daisy, that is. She wanted girls to learn that they could be active and make a real difference in the world. She overcame both deafness and the disapproval of her family to establish the Girl Scouts. Now, more than four million girls are Girl Scouts in the United States alone.