In what decade did SAS (Scandinavian Airlines System) introduce the world's first regular in-flight duty-free shopping service, revolutionizing retail in the transportation industry?

Airlines have transformed the passenger experience in many ways over the decades, including how they approach retail. In-flight shopping catalogs and duty-free sales have been a significant revenue stream for airlines, but do you know when this retail innovation first took off? Test your knowledge about the intersection of transportation and retail history with this question about when in-flight shopping first became a regular feature on commercial flights.

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1950s
1960s
1970s
1980s