The immigrants who came to the United States of America between the years 1820 and 1860 changed the character of the country because they brought with them their own culture and values. This started mixing with the already present culture and values and gave birth to a new character to the country. Among the immigrants were several Irish and German people.
A simple diffusion works best for this
The 1920s was a decade of lots social changes. The most obvious signals of change were the rise of a consumer-oriented economy and of mass entertainment, which helped to bring about a "revolution in morals and manners." Sexual mores, gender roles, hair styles, and dress all changed profoundly during the 1920s.
I think it is Free state, I am not 100% sure though. Sorry
Answer:
A stunning development and innovation.
