Technology.
development of many new consumer goods
Some signs that American businesses in the 1920s were experiencing success was workers no longer being subject to standing in ration lines. Another indication of success was with the new inventions and advancements that improved American lives.
it was 12 cents in the 20s for 1lb it was cheaper in new york and Chicago it was 10 cents
New York Stock Exchange I believe is your answer. Lol I just found it myself for AP History workbook homework.
Electricity
The word affluence can be applied in your literary work when you're talking about an abundant flow or supply. For an example; There is an affluence of new students this year crowding the classrooms.
a new affluence and economic good times
F. Scott Fitzgerald
Neue Sachlichkeit usually translated as "New Objectivity" was a style of German expressionism. Neue Sachlichkeit photographers reflected the resignation and cynicism of the 1920s.
Flappers
Popular 1920's DanceThe Foxtrot became popular in the 1920s.
New York Yankees
The 1920s in New York
Women's Fashion
Some newspapers that existed in New York City in the 1920s were The New York Times, New York Herald Tribune, New York World, New York Evening Post, New York Daily News, and New York Sun.
Radio
foxtrot