1. In 1812, the Battle of Fort Dearborn took place in what is now Chicago. Soldiers and civilians were killed in the battle, which was part of the War of 1812.

2. In 1893, the World's Columbian Exposition opened in Chicago. The fair, which celebrated the 400th anniversary of Christopher Columbus' arrival in America, attracted millions of visitors from around the world.

3. In 1956, the National League held its first All-Star Game in Chicago at Briggs Stadium, home of the Chicago White Sox. The American League won the game 7-3.

4. In 1971, the Illinois Supreme Court ruled that the death penalty was unconstitutional. The ruling was eventually overturned in 1977, and the death penalty was reinstated in Illinois in 1978.

5. In 2013, the Chicago Cubs played their 10,000th game at Wrigley Field. The Cubs beat the Milwaukee Brewers 6-5 in the game.