Gold rush I’m pretty sure!
Answer:
yellow river is where they first developed and it developed of rich fertile soil and irrigattion water
In exchange, the United States pledged to avoid involvement in the political affairs of Europe, such as the ongoing Greek struggle for independence from the Ottoman Empire, and not to interfere in the existing European colonies already in the Americas.
The answer is European colonies that are already existing in the Americans.
South Carolina was the state that attempted to nullify a federal law