New Zealand is not on the map
The Europeans had brought culture, religion and some sort of political base. The Europeans introduced voting and other major political views. They had laid the foundation of trading and laws of which people had to obey. They gave ideas towards creating laws and a leader of the U.S. They have brought slaves, in which had made a imprint in American History. It brought much prejudice towards the African Americans and created groups like the Klu Klux Klan. They have spread all kinds of nationalities and traditions over the span of the country.
Answer:
The simple answer would be by, "checks and balances", is how the two branches check upon each other. However there are specific methods in doing "checks and balances," hope this helps as a starting point to your question!
They got it from China since they had silk and porcelain there
