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The True Chicago Grid
The Chicago grid is almost perfectly aligned with true North.
March 27 at 8:05 PM 3.0 4
The largest city in 1889
In 1889, an annexation of Hyde Park, Lakeview, and Jefferson and Lake townships made Chicago the largest city in the US by area.
February 2 at 8:37 PM 3.5 4
Chicago's Original Borders
At the time of incorporation, Chicago spanned from North Ave to 22nd St, and from Wood St to Lake Michigan.
February 1 at 11:18 PM 3.5 4
Center of the Old Grid
Prior to 1909, the center of Chicago's address system was Wolf Point, with N/S and E/W addresses divided by the Chicago River.
December 6 at 5:51 PM 2.9 4