What year was O'Hare Airport renamed from its original name?

O'Hare Airport was officially renamed in 1968 from its original designation of Orchard Field Airport. The airport was named in honor of Lieutenant Commander Edward Henry "Butch" O'Hare, a naval aviator and the first naval ace of World War II. His heroism during combat made him a national hero, and the renaming of the airport served to honor his legacy and connection to Chicago. The year 1968 marks a significant change, as it was when the airport completed its transformation into a major hub for air travel in the U.S., reflecting the growing importance of air transportation during that era.