The State of
Illinois (IL))

The capital of Illinois is Springfield.

The Postal Code for Illinois: IL

The typical abbreviation for Illinois: Ill.

When the people of Illinois refer to themselves: Illinoisan

Time Zone: The state of Illinois is in the Central Time (CST/CDT) zone and observes daylight saving time.

Nicknames for Illinois: "The Prairie State"; "Land of Lincoln"

State Motto: "State Sovereignty, National Union"

State Bird: Cardinal (cardinalis cardinalis)

State Tree: White Oak (quercus alba)

State Flower: Purple Violet (viola)

State Song: "Illinois"

Statehood: Illinois became the 21st state on Dec 3, 1818.

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