Illinois is one of the great states that make up the United States of America. We have gathered large amounts of information about Illinois into one place from various sources such as the state Governor's office, the US Geological Survey (USGS), the US Census, the US Postal Service and many other authorities. So whether you are looking for Illinois history, the state bird of Illinois, or the best places to visit in Illinois, the answers are just a click away.
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Illinois History
