USA HISTORY

Detailed explanation-1: -motion pictures & radios. microphones and antennas.

Detailed explanation-2: -The 1920s was a decade of profound social changes. The most obvious signs of change were the rise of a consumer-oriented economy and of mass entertainment, which helped to bring about a “revolution in morals and manners.” Sexual mores, gender roles, hair styles, and dress all changed profoundly during the 1920s.

Detailed explanation-3: -Many of the defining features of modern American culture emerged during the 1920s. The record chart, the book club, the radio, the talking picture, and spectator sports all became popular forms of mass entertainment.

Detailed explanation-4: -With the radio, Americans from coast to coast could listen to exactly the same programming. This had the effect of smoothing out regional differences in dialect, language, music, and even consumer taste. Radio also transformed how Americans enjoyed sports.