👉 Illinois is a state located in the Midwestern region of the United States. It is often referred to as "The Land of Lincoln" due to its historical ties to Abraham Lincoln, who was born and raised in Illinois. As for defining "illinoisian," it's a term that refers to someone or something related to Illinois. In this context, Illinoisian could refer to a person from the state who is known for their high standards of education, work ethic, or other traits associated with