History · Anniversaries

200th anniversary: American surveyor James Thompson produced the first plat of Chicago for the...

Name: 200th anniversary: American surveyor James Thompson produced the first plat of Chicago for the...
Start: 2030-08-04

Sun, August 4, 2030

in 4 yr

In 1830, American surveyor James Thompson produced the first plat of Chicago for the Illinois and Michigan Canal Commissioners.

Source, method and history

Source

Wikipedia

How we know

Wikipedia "On this day" selected anniversary, 200 years (1830 to 2030).

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annual

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