The Illinois Territory was created out of the Northwest Territory in 1809. On December 3, 1818, a Joint Resolution of Congress declared Illinois a state.
You can learn a lot just by studying the names of counties in Illinois. There are 102 counties in Illinois, and their names all have something to tell students of American history who delve into the derivation of the names.
Adams is named for President John Quincy Adams.
Boone is named for Daniel Boone, previously famous for his exploration and settlement of what is now Kentucky, but probably more well-known now because of the American television series that aired from September 24, 1964 to September 10, 1970.
Calhoun comes from John C. Calhoun, U.S. Vice President under both Presidents Adams and Jackson.
Clay is for Henry Clay, author of the “Missouri Compromise.”
Douglas is named after Stephen A. Douglas, who ran against Abraham Lincoln for president in 1860.
Fayette honors the Marquis de La Fayette, the French nobleman who served in the Revolutionary War.
Franklin is named after Benjamin Franklin.
Fulton is for Robert Fulton, the first successful builder of steamboats on American waters.
Gallatin is for the man everyone wonders about when they see his statue in front of the northern entrance of the U.S. Treasury Building in Washington, D.C. Albert Gallatin was Secretary of the Treasury from 1801 to May 1813 (and nominally until February 1814) under presidents Thomas Jefferson and James Madison, the longest tenure of this office in American history.
Hamilton is named for Alexander Hamilton, George Washington’s Treasury Secretary, inter alia.
Greene is named for General Nathaneal Greene, the great commander of George Washington’s army as well as his close friend.
Hancock honors John Hancock, Revolutionary War soldier and first signer of the Declaration of Independence.
Henry is for Patrick Henry, famed orator, Revolutionary War soldier and Governor of Virginia.
Jefferson is named for President Thomas Jefferson, Revolutionary War leader, political philosopher and author of the Declaration of Independence.
Madison honors President James Madison; primary author of the U.S. Constitution and known as “father of the U.S. Constitution.”
Marion is named for General Francis Marion, known as the “Swamp Fox,” distinguished soldier in the Carolinas during the Revolutionary War.
Marshall honors John Marshall, fourth Chief Justice of the U.S. Supreme Court.
Monroe is named for President James Monroe.
Perry honors Commodore Oliver H. Perry, most noted for his heroic role in the War of 1812 during the Battle of Lake Erie. He is especially remembered for the words on his battle flag, “Don’t Give Up the Ship” and his message to General William Henry Harrison which read in part, “We have met the enemy and they are ours ….”
Putnam is named for another of George Washington’s inner circle, General Israel Putnam.
Warren is named for General Joseph Warren, pioneer physician and Revolutionary War soldier killed at Bunker Hill. Some historians think that if he had not been killed, it would have been he, not Washington, selected to be commander of the American forces.
Washington is for President George Washington.
Miscellaneous Facts About Illinois:
Area – 57,918 square miles [Illinois is the 25th biggest state in the USA]
Population – 12,859,995 (July, 2015 estimate) [Illinois is the fifth most populous state in the USA, after California, New York, Texas, and Florida]
Name for Residents – Illinoisan
State Reptile – The painted turtle [this popular creature is also the state reptile of Michigan]
Official State Snack Food: Popcorn
Special Election: In 1973, a special poll of 900,000 school children changed the State Tree from the Native Oak to the White Oak.