1817 A.D.

BC
23000

AD
1100
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Illinois City, plotted on Pensoneau's Jacksonville site, is changed to Illinoistown by the firm of McKnight and Brady. It adjoins the McCarty tract, once known as part of the Cahokia Commons. The plat was recorded in 1825 but the town did not prosper. Cahokians, upset by McKnight and Brady's attempts to lay out a rival city, plan a new town of their own but nothing comes from this. The lots for what Cahokians called Illinois City were sold at auction in St. Louis. It was made a part of East Saint Louis by annexation in 1875 and lies on the southeast part of the city in the First Ward.