In the United States every week 34 million families listen on an average four hours a day to the radio; 90 million individual movie admissions are bought; 16 million men and women go bowling at least once, probably oftener; thousands of couples dance in roadhouses, juke-joints, and dance halls; in winter 12 million hunting licenses are issued; millions of copies of the leading illustrated magazines are sold; and, in normal times, some ten or fifteen million families take their cars and go driving. These are not mass enterprises; they are popular enterprises; there are others: mass-attendance at sport, or smaller, but steady, attendance at conventions, lodge meetings and lectures. For the most part, all these can be divided into sport, games, fun; the search for information in entertainment; and entertainment by mass-communication. Sport is pleasant to think about; after all the scoldings we have had because we like to watch athletic events (just as the ancient Greeks did), it is gratifying to report the great number of people who are actually making their own fun. The same ignoble but useful desire for money which has so often served us has now built bowling alleys, dance halls and tennis courts, so that we are doing more sports ourselves. Sport began to come into its own after Populism and Theodore Roosevelt's Square Deal; it is therefore not anti-social and even withstood the prosperity of Harding and Coolidge. _Means of Communication_ The other elements I have mentioned, movies, radio and a new journalism, are the products of our immediate time. Although the moving picture was exhibited earlier, it began to be vastly popular just before the first World War, and was promptly recognized as a prime instrument of propaganda by Lenin as he began to build the Socialist State in 1917; the moving picture may have been colossal then, but it did not become prodigious, a social engine of incalculable force, until the problems of speech had been mastered. By that time another pre-war invention, the radio, had established itself in its present commercial base. Radio was first conceived as an instrument of secret communication; it began to be useful, as wireless telegraphy, when the Soviets used it to appeal to peoples over the heads of their governments--although this appeal still had to be printed, the radio receiver did not exist. When the necessary inventions were working (and the tinkering American forced the issue by building his own receivers and his own ham-senders), radio began to serve the public. Among its earliest transmissions were a sermon, the election results in the Harding-Cox campaign, crop reports, and music. The entrance of commerce was easy and natural; and before the crash of 1929 the decisive step was taken: the stations went out of the business of creating programs and sold "time", allowing the buyer to fill it with music or comedy or anything not offensive to the morals of the community.