The 1850s was an era best described in Minnesota history as an immigration boom. In 1851, after several Dakota leaders met and signed a treaty (Treaty of Traverse des Sioux) with the United ...

It all began around 1851. The Treaty of Traverse des Sioux, signed on July 23,1851, is an agreement between the Sisseton and Wahpeton bands of Dakota and the U.S. government. It transferred ...