History
The field was built in 1923 as Chicago Air Park and was named Chicago Municipal Airport on December 12, 1927, the date usually given as its opening. In 1932 it claimed to be the "World's Busiest," reporting more than 100,000 passengers on nearly 61,000 flights.
In July 1949 it was renamed Midway to honor the Battle of Midway, the World War II naval victory in the Pacific.