History in short
In 1803, the United States Army built Fort Dearborn, which was destroyed in the War of 1812 Battle of Fort Dearborn. The Ottawa, Ojibwe, and Potawatomi had 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 at that time. Within seven years it would grow to a population of over 4,000. The City of Chicago was incorporated on Saturday, March 4, 1837.
Climate
The city lies within the humid continental climate zone, and experiences four distinct seasons. It is a place where the climate has to be taken into consideration. May and September are pleasant and mild; April and June are mostly fine, although thunderstorms with heavy winds can also occur suddenly. Although there may be a slight chill in the air in October, it rarely calls for more than a light coat and some days that's not even necessary. In some years, the warmth stored by the lake may prolong a pleasant autumn into November.
Arrival
Chicago has two major airports, O'Hare International Airport and Midway Airport. There are many taxis from and to city center but they are expensive . They will charge from $30 to $40. CTA trains provide direct service to both larger airports for $2.25