An Organic Act is a generic name for a statute used by the United States Congress to describe a territory, in anticipation of being admitted to the Union as a state. Because of Oklahoma's unique history (much of the state was a place where aboriginal natives have always lived and after forced removal many other tribes were relocated here) an explanation of the Oklahoma Organic Act needs a historic perspective. In general, the Oklahoma Organic Act may be viewed as one of a series of legislative acts, from the time of Reconstruction, enacted by Congress in preparation for the creation of a unified State of Oklahoma. The Organic Act created Oklahoma Territory, and Indian Territory that were Organized incorporated territories of the United States out of the old "unorganized" Indian Territory.