The 1920s are known as the Roaring twenties because it was an era for American during which the times were "roaring". America was experiencing success during an modern age that was booming with technology ( like radios, the transport system that include rail roads and Ford cars, house hold appliances like the washing machine and. vaccum cleaner ). The Roaring 20s was after the terrible events of World war one but before the crash of the Great Depression (1929-30s).
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