1. On November 27, 1901, the first radio transmission in the state of Illinois took place in Chicago. A Canadian-born engineer named Reginald Fessenden transmitted a voice message and played a recording of Handel's "Largo" from an antenna in downtown Chicago, marking a significant moment in the history of communication.

2. In 1913, November 27 was the date of one of the deadliest forest fires in Illinois history. Known as the "Great Lakes Fire," it burned over 1,000 square miles and killed at least 29 people. The fire was caused by a carelessly discarded cigarette and spread quickly due to strong winds.

3. On November 27, 1937, the iconic Wrigley Building in downtown Chicago was officially dedicated. The building, which was designed by architect Graham, Anderson, Probst & White, is known for its distinctive white terra cotta façade and is a prominent landmark in the city.

4. In 1995, November 27 marked the first day of a major strike by Chicago Transit Authority workers. Over 8,000 workers went on strike, leaving thousands of commuters without public transportation for several days.

5. On November 27, 2015, the city of Alton, Illinois celebrated the 150th anniversary of the final debate between Abraham Lincoln and Stephen Douglas. The debate, which took place on October 15, 1858, helped to shape the national conversation on slavery and laid the groundwork for Lincoln's eventual election as president in 1860.