How did new forms of mass entertainment create a national culture in the 1920s?

It created the American culture ideal: of mass consumption and materialism

Explanation:

Durin the 1920s credit cards became widely accepted in the U.S, and people began spending money that they did not have on not just needs, but wants such as: entertainment.  It became the ideal of American Culture.

my cultural heritage consists of irish, german, native american, and others.

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i think a judge or jury, as they preside over the court and is the central figure in a trial.

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