Filming Of Transformers 3', Chicago, United States

During the mid 18th century the area was inhabited by a native American tribe known as the Potawatomis, who had taken the place of the Miami and Sauk and Fox peoples. The first known non-indigenous permanent settler in Chicago, Jean Baptiste Pointe du Sable, who was a man of mixed African and European heritage born in Saint-Domingue (modern day Haiti), arrived in the 1770s, married a Potawatomi woman, and founded the area's first trading post. In 1795, following the Northwest Indian War, an area that was to be part of Chicago was turned over by some Native Americans in the Treaty of Greenville to the United States for a military post.
In 1803, the United States Army built Fort Dearborn, which was destroyed in the 1812 Battle of Fort Dearborn. The Ottawa, Ojibwe, and Potawatomi later ceded additional land to the United States in the 1804 Treaty of St. Louis. The Potawatomi were eventually forcibly removed from their land following the Treaty of Chicago in 1833. On August 12, 1833, the Town of Chicago was organized with a population of around 200. Within seven years it grew to a population of over 4,000. The City of Chicago was incorporated on March 4, 1837.