A.33,984 Messerschmitt Bf 109s were made between their introduction in 1937 & their retirement in 1945. It's the most produced fighter aircraft in history.
A.Heinkel and Messerschmitt were the first companies to bombard the UK with their bubble cars in the 1950-60s. BMW also made a version called the Isetta.
Q.Who invented the jet engengin
A.Dr Hans von Ohain and Sir Frank Whittle are recognised as being the co-inventors of the jet engine. Ohain's first jet flew in 1939 & Whittle's in 1941.
Q.When was the berlin wall made
A.Built in 1961, the Berlin Wall fell on 9 Nov 1989, symbolising the fall of Eastern European Communist rule. The longest remaining section is 0.8 miles.