Answer:
Oregon Country
Explanation:
When Britain agreed to let the 49th parallel by the US/British boundary, the other state that was being debated with Britain is "Oregon Country"
This is evident in that, the 49th parallel agreement between Great Britain and the United States was about the north boundary of Louisiana Territory that lies between Lake of the Woods and the Rocky Mountains.
However, during this period, the two nations also decided to joint occupation of the Oregon country for some years.
The three branches of government are the Legislative, Executive, and the Judiciary.
The Legislative branch is composed of the Senate and House of Representatives. It makes the laws and approves presidential appointment.
The Executive branch is headed by the President, other member of this branch are the Vice-President, Executive Office of the President, and the Cabinet. The president signs the legislation into laws or vetoes it. He is also tasked to enforce and implement the laws set in place by the Congress.
The Judicial branch is made up of Judges and courts. The Supreme Court is the highest court in the United States. The judges and courts are tasked to interpret the laws made by Congress and to ensure that said laws are not against the Constitution.
The majority of immigrants that came to the US between 1820 and 1870 came from England and Northern Europe.
