Which transportation company launched the world's first modern frequent flyer program, revolutionizing customer loyalty in the industry?

Loyalty programs have revolutionized how transportation companies retain customers. From airlines to ride-sharing services, these programs reward frequent travelers with points, miles, and exclusive perks. But how much do you really know about the history and impact of these programs? This trivia question tests your knowledge about one of the most influential loyalty innovations in transportation history.

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American Airlines (with AAdvantage in 1981)
United Airlines (with Mileage Plus in 1979)
British Airways (with Executive Club in 1978)
Pan American World Airways (with WorldPass in 1980)