Generally, there were two major factors that led to the decline of the Yuan Dynasty: one was the class conflict caused by the heavy taxation, the other one was the ethnic contradiction resulting from the 'Four Class System'. ... Also, power struggles within the ruling class became more and more serious.
2. It actually sealed the deal that foreign countries would not be involved in that war.
The correct answer is B: Immigration was based on the national origins quota system. The National Origins Act was a United States federal law that set the amount of immigrants from certain countries that were allowed to enter the U.S. Admission to the U.S was determined by ethnic identity and national origin. It reduced the number of southern and eastern Europeans and excluded Asians entering the country.
The American colonies of 1760, did many Americans consider themselves British? Did they consider themselves Englishmen, even if born in the colonies? Also, am I right in the impression that a resident of Massachusetts would be the least likely to identify as British? That they were the most independent minded, even in 1760?