Le lac superieur the French called it, meaning only that geographically it lay above Lake Huron. In size, however, Lake Superior stands above all other freshwater lakes in the world. The intrepid Frenchman Brulé discovered it around 1622. During the 1650s and 1660s, French fur traders, such as Radisson and Groseilliers, and Jesuits, such as Fathers Allouez and Menard, explored this great inland sea. Within 250 years fur laden canoes had given way to huge boats carrying ore and grain to the world.
Plaque via Michigan History Center