1. In 1861, the Illinois State Legislature passed a resolution in support of the Union cause during the Civil War. The resolution pledged to provide troops and resources for the war effort.

2. In 1913, the Illinois state capitol building was dedicated in Springfield. The building, which features a dome modeled on the one at the U.S. Capitol, is still in use today.

3. In 1958, the Chicago White Sox played their first game at newly-built Comiskey Park. The stadium, which was also known as "The Cell," was the team's home until 1990.

4. In 1970, the Illinois Environmental Protection Agency was established. The agency is responsible for protecting the state's air, water, and land resources.

5. In 2011, the Chicago Fire Department held a memorial service for two firefighters who died in the line of duty the previous year. The service was held at the site of the fatal fire, which occurred on December 22, 2010.