Historic events Human activity in the Chicago area prior to the arrival of European explorers is mostly unknown, although it evidently served as a crossing point among many different peoples. In 1673, an expedition headed by
Louis Jolliet and
Jacques Marquette was the first recorded to have crossed the
Chicago Portage and traveled along the Chicago River. Marquette returned in 1674, and camped for a few days near the mouth of the river. He moved to the portage, where he camped through the winter of 1674–75. Joliet and Marquette did not report any Native Americans living near the Chicago River area at that time. Archaeologists, however, have discovered numerous historic Indian village sites dating to that time elsewhere in the Chicago region. In 1682,
René Robert Cavelier, Sieur de La Salle had claimed a large territory (including the Chicago area), for France. Two of
de La Salle's men built a stockade at the portage in the winter of 1682/1683. In 1763, following defeat in the
French and Indian War, the French ceded this area to
Great Britain. It became a region within their
Province of Quebec. Great Britain later ceded the area to the United States (at the end of the
American Revolutionary War), although the
Northwest Territory remained under
de facto British control until about 1796. Following defeat of several Native American tribes in the
Northwest Indian War of 1785–1795, the
Treaty of Greenville was signed between the United States and several chiefs at Fort Greenville (now
Greenville, Ohio), on August 3, 1795. As part of the terms of this treaty, a coalition of
Native Americans and
Frontiers men, known as the
Western Confederacy, ceded to the United States large parts of modern-day
Ohio,
Michigan,
Indiana,
Wisconsin, and Illinois. This included "six miles square" centered from the mouth of the Chicago River for the establishment of a U.S. military base.
Local events A French-Jesuit mission, the
Mission of the Guardian Angel, was founded somewhere in the vicinity in 1696, but was abandoned around 1700. The
Fox Wars effectively closed the area to Europeans in the first part of the 18th century. An early non-native to re-settle in the area may have been a trader named Guillory, who might have had a trading-post near
Wolf Point on the Chicago River around 1778.
Jean Baptiste Point du Sable, a French-speaking trader and settler of African descent, built a prosperous farm and trading post near the mouth of the Chicago River in the 1780s, at a site directly across the river from the future fort. A settlement developed there and he is viewed by some as the founder of Chicago.
Antoine Ouilmette is the next recorded resident of Chicago; he claimed to have settled at the mouth of the Chicago River in July 1790. == First Fort Dearborn ==