Cate Lineberry

While specific traditions vary, nearly every country observes a day to honor mothers.

Mitchell, the wife of Richard Nixon's attorney general, alleged she was held hostage and drugged after she attempted to talk to the press.

The founder of the Red Cross dedicated her life to helping others and fighting for equality.

Neutrality was often more complex than simply avoiding choosing sides.

Carson's 1962 bestseller first warned the public about the devastating effects of chemical pesticides—and started a revolution.