Which airline first introduced an in-flight magazine as an advertising and entertainment medium for passengers?

The transportation industry has pioneered many advertising techniques that we now take for granted. From billboards along highways to branded vehicles and digital displays at bus stops, transportation companies have found creative ways to reach customers on the move. One particularly innovative advertising medium emerged in the aviation sector, forever changing how brands engage with travelers during their journey. Test your knowledge about this milestone in transportation advertising history!

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Pan American World Airways (Pan Am) with 'Clipper' in 1941
United Airlines with 'The Main Line Airway' in 1936
Trans World Airlines (TWA) with 'TWA Skyline' in 1945
Delta Air Lines with 'Delta Digest' in 1957