1803 Fort Dearborn
War of 1812 Battle of Fort Dearborn Destroyed Fort Dearborn
500 Potawatomi Indians Burnt to Ground
1833 Chicago Incorporated
1855 Widen River
1857 Fort Dearborn Fire
1871 Chicago Fire
1880 Move Cemetery
1893 Columbian Exposition
1900 Change Direction of River
1933 Century of Progress

Chicago Flag
https://www.google.com/?gws_rd=ssl#q=chicago+flag+meaning

Raising Buildings
https://www.google.com/?gws_rd=ssl#q=lifting+chicago+buildings

Lumber Grain and Meatpacking
http://www.encyclopedia.chicagohistory.org/pages/767.html

Chicago Streets
http://www.chsmedia.org/househistory/namechanges/start.pdf