Aletta Jacobs (1854–1929) was a Dutch physician and women's suffrage activist. Jacobs strove throughout her life to change laws that limited women's access to equality, starting in 1883 with an unsuccessful court challenge and eventually achieving success on 18 September 1919, with the signing of a suffrage bill into law. In addition to her suffrage work she led campaigns aimed at deregulating prostitution, improving women's working conditions, and promoting peace.