1964 On January 23, the Twenty-fourth Amendment to the Constitution, which abolishes the poll tax in federal elections, becomes law with its ratification by South Dakota.Timeline State: South DakotaTimeline Country: United StatesTimeline Subjects: constitutional amendmentsEra: 1901-2000 Read more about 1964
1889 On November 2, South Dakota becomes the fortieth state.Timeline State: South DakotaTimeline Country: United StatesTimeline Subjects: statehoodEra: 1801-1900 Read more about 1889
