From 1920 to 1933, Prohibition in the United States banned the sale of alcoholic drinks, resulting in illicit speakeasies which became lively venues of the "Jazz Age", hosting popular music, dance songs, novelty songs, and show tunes. Jazz began to get a reputation as immoral, and many members of the older generations saw it as a threat to the old cultural values by promoting the decadent values of the Roaring 20s. Henry van Dyke of Princeton University wrote, "... it is not music at all. It's merely an irritation of the nerves of hearing, a sensual teasing of the strings of physical passion." "The New York Times" reported that Siberian villagers used jazz to scare away bears, but the villagers had used pots and pans; another story claimed that the fatal heart attack of a celebrated conductor was caused by jazz.