What marked the end of the frontier?
Awhen Native Americans took all of the land
Bafter settlers completed the gold rush
Cwhen fences went up and open land was gone
Dwhen people stopped settling
Ewhen treaties signed over land
Awhen Native Americans took all of the land
Bafter settlers completed the gold rush
Cwhen fences went up and open land was gone
Dwhen people stopped settling
Ewhen treaties signed over land