Catholic worker leader Dorothy Day was born in Brooklyn, N.Y. In 1933, along with Peter Maurin, she founded the Catholic Worker movement. It combined a spiritual vision of social justice with the efforts of labor unions and other activist groups to improve the economic condition of working people. “The greatest challenge of the day,” said Day, “is how to bring about a revolution of the heart . . .” Efforts have been launched within the Catholic Church to seek sainthood for Day.