History of South Dakota

The history of South Dakota describes the history of the U.S. state of South Dakota over the course of several millennia, from its first inhabitants to the recent issues facing the state.

Human beings have lived in what is today South Dakota for at least several thousand years. Early hunters first entered North America at least 17,000 years ago via the Bering land bridge, which existed during the last ice age and connected Siberia with Alaska. Early settlers in what would become South Dakota were nomadic hunter-gatherers, using primitive Stone Age technology to hunt large prehistoric mammals in the area such as mammoths, sloths, and camels. The Paleolithic culture of these people disappeared around 5000 BC, after the extinction of most of their prey species.

Between AD 500 and 800, much of eastern South Dakota was inhabited by a people known as the 'Mound Builders'. The Mound Builders were hunters who lived in temporary villages and were named for the low earthen burial mounds they constructed, many of which still exist. Their settlement seems to have been concentrated around the watershed of the Big Sioux River and Big Stone Lake, although other sites have been excavated throughout eastern South Dakota. Either assimilation or warfare led to the demise of the Mound Builders by the year 800. Between 1250 and 1400 an agricultural people, likely the ancestors of the modern Mandan of North Dakota, arrived from the east and settled in the central part of the state. In 1325, what has become known as the Crow Creek Massacre occurred near Chamberlain. An archeological excavation of the site has discovered 486 bodies buried in a mass grave within a type of fortification; many of the skeletal remains show evidence of scalping and decapitation.

The Arikara, also known as the Ree, began arriving from the south in the 16th century. They spoke a Caddoan language similar to that of the Pawnee, and probably originated in what is now Kansas and Nebraska. Although they would at times travel to hunt or trade, the Arikara were far less nomadic than many of their neighbors, and lived for the most part in permanent villages. These villages usually consisted of a stockade enclosing a number of circular earthen lodges built on bluffs looking over the rivers. Each village had a semi-autonomous political structure, with the Arikara's various subtribes being connected in a loose alliance. In addition to hunting and growing crops such as corn, beans, pumpkin and other squash, the Arikara were also skilled traders, and would often serve as intermediaries between tribes to the north and south. It was probably through their trading connections that Spanish horses first reached the region around 1760. The Arikara reached the height of their power in the 17th century, and may have included as many as 32 villages. Due both to disease as well as pressure from other tribes, the number of Arikara villages would decline to only two by the late 18th century, and the Arikara eventually merged entirely with the Mandan to the north.

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