The round Silo for farm storage of silage was first constructed on a farm in Spring Grove, Illinois.
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The abbreviation "ORD" for Chicago's O'Hare airport in Illinois comes from the original name Orchard Field. O'Hare Airport was named in honor of Lieutenant Commander Edward H. "Butch" O'Hare.
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Springfield, Illinois is the state capital and the home of the National Historic Site of the home of President and Mrs. Abraham Lincoln.