1. In 1833, the town of Chicago was incorporated as a city. Before that, it was a small trading post established by the French in the late 17th century. Today, the city is one of the largest in the United States and home to millions of people.

2. In 1865, Confederate leader Jefferson Davis was captured in Georgia. He was later held prisoner at Fort Monroe in Virginia for two years. Davis had been the President of the Confederate States of America from 1861 to 1865.

3. In 1908, the first indoor airplane flight took place in Chicago. Pilot John Montgomery flew an altitude of just over 20 feet in a 38-foot glider inside a building at the Chicago Coliseum. This feat marked the beginning of indoor aviation and paved the way for many future innovations.

4. In 1976, the Century of Progress World's Fair opened in Chicago. The fair celebrated the centennial of the city's incorporation and showcased many technological advancements of the time, such as the first home video game console and the development of solar cells.

5. In 2015, the Chicago Cubs played their first home game of the season. This particular game was significant because it marked the beginning of the Cubs' push for their first World Series title in over a century. The Cubs went on to win the championship in 2016, ending a 108-year drought.