Which airline launched the world's first modern frequent flyer program in 1981, revolutionizing transportation customer loyalty and creating a model that would be adopted across the industry?

Airline loyalty programs have revolutionized the transportation industry and customer relationships. These programs not only create brand loyalty but have become sophisticated marketing ecosystems that influence consumer behavior and generate significant revenue. Test your knowledge about the origins and evolution of these influential transportation marketing innovations that changed how customers interact with travel brands.

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American Airlines (AAdvantage)
United Airlines (Mileage Plus)
British Airways (Executive Club)
Delta Air Lines (SkyMiles)