Here’s a look back at what happened in the Chicago area on Nov. 18, according to the Tribune’s archives.

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Weather records (from the National Weather Service, Chicago )

High temperature: 72 degrees (1953)

Low temperature: 8 degrees (1880)

Precipitation: 1.44 inches (1921)

Snowfall: 2.5 inches (1986)

1883: Standard Time — based on the mean solar time at the central meridian of each time zone — was formally inaugurated on a day that came to be known as the “Day of Two Noons.”

The time zones were enacted during the General Time Convention at the Grand Pacific Hotel at LaSalle Street and Jackson Boulevard in Chicago. A plaque at the location — which is just north of the Chicago Board of Trade Building — notes its

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