The world's first female prime minister ruled what country?

• Sri Lanka
  On July 20, 1960, Sirimavo Bandaranaike became prime minister of Sri Lanka, making her the country’s and the world’s first woman ever to hold that highest seat in the land. Nicknamed the “weeping widow,” Bandaranaike took over the role from her husband who was assassinated by a Buddhist monk.
• England
  On July 20, 1960, Sirimavo Bandaranaike became prime minister of Sri Lanka, making her the country’s and the world’s first woman ever to hold that highest seat in the land. Nicknamed the “weeping widow,” Bandaranaike took over the role from her husband who was assassinated by a Buddhist monk.
• Norway
  On July 20, 1960, Sirimavo Bandaranaike became prime minister of Sri Lanka, making her the country’s and the world’s first woman ever to hold that highest seat in the land. Nicknamed the “weeping widow,” Bandaranaike took over the role from her husband who was assassinated by a Buddhist monk.