Claim: The Ländler folk dance was popularized in Vienna by Josef Lanner.
Evidence: It was he—along with Johann Strauss I and Johann Strauss II—that helped popularize the waltz in Vienna and elsewhere. Josef Lanner (1801–1843) wrote several Ländlers. Along with a number of other folk dances from Germany and Bohemia, it is thought to have contributed to the evolution of the waltz.