Deutsche Lufthansa AG, or simply Lufthansa, is the flag carrier of Germany. When combined with its subsidiaries, it ranks second in Europe by passengers carried, as well as largest in Europe and fourth largest in the world by revenue. Lufthansa is also one of the five founding members of Star Alliance, which is the world's largest airline alliance, formed in 1997.
Lufthansa was founded in 1953 and commenced operations in April 1955.
ソース: Wikipedia