What influence did WW1 have on the roaring 20s?

The end of the First World War in 1918 was a time of great social and economic transition that led directly to what made the 1920's “The Roaring Twenties.” ... Technological advancements, urbanization, and immigration led directly to the social upheavals of the 1920s

Explanation:

it is the dominance of   the spanish language and roman catholic region in mexico, french being the official language of several african countries, and the existence of a western-style government in south asian countries

what are local authorities doing to fix the problem

explanation: what are local authorities doing to fix the problem