Why were the 1920s “ROARING”?

it was called the roaring 20s because it had economic growth and widespread prosperity and defied prohibition

Widespread economic growth. The modern American middle class began to emerge in the 20's. With the increase of buying on credit, many American families were able to afford new machines, such as washing machines, cars, et cetera. This increase in economic activity gave the illusion that the economy was "roaring", however the large amount of borrowing helped cause the economic destruction that was seen at the end of the decade with the Wall Street Crash in October of 1929.

Explanation:

the answer is )multiethnic

they believed democracy was worth the fight