1939: Heinkel He 178, the first turbojet-powered aircraft, makes its first flight in Germany.
1942: Gloster Meteor, the first jet fighter to enter operational service, is introduced by the United Kingdom.
1944: Messerschmitt Me 262, the first jet fighter to see combat, is deployed by Germany.
So, the first powered jet fighters were created in the 1930s, with the first operational jet fighters appearing in the early 1940s.
