In the Midwest region.
The US dollar (USD) is the currency throughout the entire United States of America (USA).
The US did not buy Illinois specifically from the French before or after the Louisiana Purchase. Illinois was part of the larger territory acquired by the US through the Louisiana Purchase in 1803. The Louisiana Purchase included the entire Mississippi River Basin, which encompassed present-day Illinois.
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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.
He was a US Senator representing Illinois.
As a part of Illinois it became a part of the US on 3 December 1818.
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.
Abraham Lincoln is buried in Springfield, Illinois.