(1743) French explorers, the LaVerendrye brothers, claimed area for France
(1750) Sioux tribes moved to Dakota
(1794) Jean Baptiste Trudeau established trading company
(1803) U. S. acquired South Dakota from France in Louisiana Purchase
(1804) Lewis and Clark Expedition arrived in South Dakota
(1817) Joseph LaFramboise started trading post at Fort Pierre, the oldest
continuous white settlement in South Dakota
(1823) Arikara Indians attached fur trading party, 12 traders killed and
11 wounded
(1861) Dakota Territory was established; William Jayne appointed governor
(1863) First homestead filed in Dakota Territory
(1868) Treaty signed with the Sioux, continued the Great Sioux Reservation
which included the Black Hills
(1874) Gold was discovered in Black Hills; gold rush began
(1876) Homestake Gold Mine opened; Sioux war occurred and Gen. Custer and
7th Cavalry defeated
(1889) South Dakota admitted into the Union as 40th state
(1888) Major blizzard strikes, 35 people die
(1890) Wounded Knee Massacre occurred - 7th Cavalry killed more than 250
Lakota men, women and children; Sitting Bull killed at Little Eagle; Indian wars
ended
(1927) Gutzon Borglam began work on Mount Rushmore National Monument
(1930's) Severe drought and dust caused agricultural problems
(1939) Badlands designated National Monument by President Franklin D. Roosevelt
(1941) Mount Rushmore National Monument completed
(1944) Congress passed Pick-Sloan Plan for construction of four dams: Fort
Randall, Oahe, Gavin's Point and Big Bend
(1948) Korcak Ziolkowski began work on Crazy Horse Mountain
(1949) Blizzard struck South Dakota; railroad from Pierre to Rapid City blocked
for several weeks; air drops of hay required
(1952) Major flood caused damage all through the state, inundated most of
Pierre
(1960) Ben Reifel elected as first American Indian to serve in Congress
(1962) Oahe Dam completed, started generating electricity
(1963) Cold War escalated and ICBM missiles were placed around state
(1972) Flooding in Rapid City area killed over 200
(1973) Riots by supporters of American Indian Movement occurred at Wounded
Knee II and Custer Court House.
(1980) Chicago, Milwaukee, St. Paul & Pacific Railroad shut several thousand
miles of track which affected more than half of state's total railroad mileage;
U. S. Congress approved payment to Sioux Indians of $122 million for compensation
of lands seized in 1877
(1987) Lottery began; fire destroyed block in historic downtown area of Deadwood
(1988) Severe drought conditions caused crop failures and lack of feed for
cattle; lightning caused large forest fire in Black Hills destroying 16,000 acres
(1990's) ICBM missiles removed