what was it used for during the world war ii?
First Air Force training airfield.
Philadelphia International Airport
During World War II the United States Army Air Forces used the airport as a First Air Force training airfield.
which places are connected by delaware route 8? Maryland border in Marydel east to an intersection with DE 9 north of Little Creek. which places does it pass through? Marydel since when is it in use? 1920 which are the other prominent roads in the state whose border is mentioned above? There are six U.S. highways that serve Delaware: U.S. 9, U.S. 13, U.S. 40, U.S. 113, U.S. 202, and U.S. 301. what are the other means of transportation apart from roads? Railways and airways which rail company serves the route? Norfolk Southern and CSX are their any airports? Yes,  Philadelphia International Airport (PHL), Baltimore-Washington International Thurgood Marshall Airport (BWI) and Washington Dulles International Airport (IAD) when was the first one built? UNANSWERABLE
wiki:19896562
Philadelphia International Airport [SEP] World War II use
During World War II the United States Army Air Forces used the airport as a First Air Force training airfield. Beginning in 1940, Rising Sun School of Aeronautics of Coatesville performed primary flight training at the airport under contract to the Air Corps. After the Pearl Harbor Attack, the I Fighter Command Philadelphia Fighter Wing provided air defense of the Delaware Valley area from the airport. Throughout the war, various fighter and bomber groups were organized and trained at Philadelphia airport and assigned to the Philadelphia Fighter Wing before being sent to advanced training airfields or being deployed overseas. Known units assigned were the 33d, 58th, 355th and 358th Fighter Groups.