1. On June 7, 1867, construction began on the Illinois State Capitol building in Springfield. The building was completed in 1888 and is still in use today as the seat of government for the state of Illinois.

2. The famous inventor and founder of the Kellogg Company, John Harvey Kellogg, was born on June 7, 1852, in Tyrone Township, Illinois. Kellogg is known for his pioneering work in the field of nutrition and health, as well as his contribution to the development of flaked cereal.

3. On June 7, 1893, the World's Columbian Exposition opened in Chicago. This international exhibition celebrated the 400th anniversary of Christopher Columbus' arrival in the Americas and attracted millions of visitors from around the world.

4. The Chicago Blackhawks won their first Stanley Cup championship in 1934 on June 7, defeating the Detroit Red Wings 1-0 in Game 4 of the finals. This victory marked the beginning of a successful period for the Blackhawks, who have since won a total of six Stanley Cup championships.

5. On June 7, 1999, the John Hancock Center in Chicago was renamed the John Hancock Center at 875 North Michigan Avenue. This iconic skyscraper, which stands at 1,127 feet tall, is one of the tallest buildings in the United States and a beloved landmark in the city of Chicago.