In the Midwest region.
The US dollar (USD) is the currency throughout the entire United States of America (USA).
Illinois was acquired from Britain as part of the treaty ending the Revolutionary War which was before the Louisiana Purchase. The French had earlier ceded Illinois to the British with the treaty that ended the French and Indian War.
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Every US state, including Illinois, has two US senators.
There are 59 State Senators in the Illinois Senate and two US Senators from Illinois in the US Senate.
Approximately 4% of the total US population lives in Illinois.
As a part of Illinois it became a part of the US on 3 December 1818.
He was a US Senator representing Illinois.
It is a city within the US State of Illinois.
Illinois has 18 US Representatives.
The supreme law of Illinois is the US Constitution followed by the Illinois state constitution.
Most states in the US had their state legislators vote on US senate nominees. Illinois did this in that manner.