Agencies
Services
Colonial Era, 1763-1776
Jacques Marquette and Louis Jolliet crossed portions of what is now Illinois in 1673, extending the reach of New France in America. France dominated the Mississippi Valley for almost a century, surrendering most of its North American claims to Great Britain in 1763. For much of the period settlements anchored on the Mississippi between Cahokia and Kaskaskia served as a breadbasket of French Louisiana.
