Mary Daly (October 16, 1928 – January 3, 2010) was an American radical feminist philosopher and theologian. Daly, who described herself as a "radical lesbian feminist", taught at the Jesuit-run Boston College for 33 years. Once a practicing Roman Catholic, she had disavowed Christianity by the early 1970s. Daly retired from Boston College in 1999, after violating university policy by refusing to allow male students in her advanced women's studies classes. She allowed male students in her introductory class and privately tutored those who wanted to take advanced classes.