What percent of Chinese immigrants returned to China between 1850 and 1900?

begins a massive airlift of food, water, and medicine to the citizens of the besieged city

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

b) race riots in several cities

this is a good question! i'll do some research and come back when i have the answer!