Answer:
-they both started after world wars
-Both the 1920's and 1950's were decades of economic prosperity for the wealthy and upper middle class. Both decades birthed new music. The 1920's jazz was popular and in the 1950's rock was. Each decade had a Red Scare.
Explanation:
The 1920’s and 1950’s are two eras that exemplify the spirit of triumph and wealth. In both decades, a nation thrilled by the victorious conclusion of war and the return of their loved ones from war entered into an age of capitalism and materialism, bolstering the economy and with it national pride. Some of features most common to the 20’s and 50’s were consumerism and the accompanying optimistic mindset, the extent to which new ideas entered society, and discrimination in terms of both sexism and racism.