What things were to create consumers in the 1920s

Those years in the US were known as "The Roaring '20s" because of the escalation of consumption that followed the prosperity that could be breathed with the industry working at the service of domestic and peaceful purposes. The new technological advances were applied to the development of the automotive industry, home appliances and other consumer products: new fabrics, new designs, new customs and ways of life enjoying prosperity. The adoption by the government of more conservative tax policies that encouraged private business and individual growth helped this trend.

New techniques of advertising and presentation of the products of the market gave easier access to objects that until then did not represent a need, so the need had to be created together with the product. The media of the time, radio and magazines, were very useful in this purpose. The first mail order catalogs were created and new delivery systems were implemented. Guarantees, purchases by credit, installation included in the purchase of equipment and other marketing concepts are developed for the first time in those years.

this isn't a question and if you're going to list things be kind and use commas.

the roman empire began to fall