What is the capital of Illinois?

Springfield is the capital of Illinois. It was chosen as the state capital in 1837, primarily due to its central location, which made it more accessible for residents across the state at that time. Springfield is also historically significant as it was the home of Abraham Lincoln for many years, which adds to its prominence in American history. Unlike Chicago, which is the largest city in the state and known for its economic and cultural significance, Springfield serves as the political hub where key government institutions are located. The other cities listed, such as Peoria and Rockford, while notable in their own right, do not hold the status of the state capital.