Part of it was because of the Industrial Revolution and the invention of the cotton gin by Eli Whitney.
The Industrial Revolution had many positive effects. Among those was an increase in wealth, the production of goods, and the standard of living. People had access to healthier diets, better housing, and cheaper goods. In addition, education increased. I know this isnt a straight answer but hope it helps some.
Answer:
On 12 April 1927, Chiang carried out a purge of thousands of suspected Communists and dissidents in Shanghai, and began large-scale massacres across the country collectively known as the "White Terror". During April, more than 12,000 people were killed in Shanghai.
It’s d by being born on U. S soil