Answer:
Jamestown, Virginia is very important in the context of both world and US history. It came to be the first successful English colony in the New World, leading for new travelers to come to the Americas and eventually spawn many countries along the way. Politics, cultures, and general history as we know it would be altered heavily if the colony of Jamestown had failed over 400 years ago.
By taking away racial segregation in the military
"If the ruling dynasty was wealthy, it would keep the Mandate of Heaven" is the best answer from the list, but it should be noted this was not always the case.
#2- Trade emerged as a main source of income.
The answer is The House of Representatives