Robert La Salle was among the first Europeans to sail across Lake Michigan, significantly advancing exploration in the Great Lakes region.

A significant turning point in North American discovery was reached in the late 17th century when French explorer Robert La Salle became one of the first Europeans to sail across Lake Michigan. As part of his efforts to create trade routes and increase French dominance in the New World, La Salle traveled across the Great Lakes, including Lake Michigan. His trips promoted more exploration and trade by producing useful maps and insights into the topography and resources of the area. La Salle's exploration of Lake Michigan and the neighboring Great Lakes influenced the course of local history and paved the path for later European settlers.