Claim: Manitoba is an area.

The Manitoba Act -LRB- Loi sur le Manitoba -RRB- , is an act of the Parliament of Canada that is defined by the Constitution Act , 1982 as forming a part of the Constitution of Canada . The act , which received the royal assent on May 12 , 1870 , created the province of Manitoba and continued in force An Act for the Temporary Government of Rupert 's Land and the North-Western Territories when united with Canada upon the absorption of the British territories of Rupert 's Land and the North-Western Territory into Canada on July 15 , 1870 .