When did wheels for luggage become common?

There were suitcases with wheels already in the 1970s but they were unstable and never really popular. Wheeled luggage only became dominant in the early nineties thanks to the innovation of the upright two-wheel style by Travelpro. Since the 2000s bags without wheels have become unusual rarities. read more

Finally, though, Macy’s ordered some, and the market grew quickly as Macy’s ads began promoting “the Luggage That Glides.” The patent, which Mr. Sadow applied for in 1970 and received in 1972, noted that people were dealing with luggage in a new way, as airplanes decisively replaced trains as the common mode of long-distance travel. read more