Here’s a look back at what happened in the Chicago area on Aug. 15, according to the Tribune’s archives.

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Weather records (from the National Weather Service, Chicago )

High temperature: 98 degrees (1944)

Low temperature: 48 degrees (2004)

Precipitation: 1.87 inches (1993)

Snowfall: None

1812: Some 500 Potawatomi and their allies encircled 110 men, women and children who had marched out of Fort Dearborn at the mouth of the Chicago River, heading for Fort Wayne in Indiana Territory. Soldiers from the garrison formed a line and advanced on the Native Americans.

Sixty-eight of the Fort Dearborn contingent lost their lives in the fighting and its aftermath. The Potawatomi losses are unknown but were certainly far few

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