One of the greatest contributions of Chinese immigrants to the United States was the construction of a railroad that linked the East and West coasts of the United States.<span />
I'm still learning, but I believe it would be an economic recession along with a rise in tariffs while their is a decrease in export values.
Many Japanese-Americans were sent to internment camps, especially on the west coast of America. This was due to fear that they were spies for the Japanese government, which was fighting in opposition of the United States. This also happened on the west coast of Canada with Japanese-Canadians.
It appealed to people of a low socioeconomic status.
Also, there was mass conversion, with Peter reportedly converting 3000 people with one sermon. The growth rate was huge. The numbers of Christians increased by 46% every decade.