Calder v British Columbia (AG)
Calder v British Columbia (AG) [1973] SCR 313, [1973] 4 WWR 1 was a decision by the Supreme Court of Canada. It was the first time that Canadian law acknowledged that aboriginal title to land existed prior to the colonization of the continent and was not merely derived from statutory law.
Source: Wikipedia — Calder v British Columbia (AG) (CC BY-SA 4.0)