Historically, during a period on the Frontier in North America after the removal of the American Bison and the Native Americans and before the coming of the homesteaders, ranching dominated economic activity. The public lands on the Great Plains consisted of "open range" and anyone could turn cattle loose on them. Barbed wire, invented in 1869, gradually made inroads in fencing off privately-owned land, especially for homesteads, and ranching became limited to lands of little use for arable farming.