The Pinckney Treaty was a treaty signed between Spain and the United States designating the US border to be on the 31st Parallel. It had other provisions in it that protected other areas of the US and dealt with the issues of aggressive Indian attacks.
there is no country that does not have parallel lines on their buildings. this is proven.
the country that forms the northern boundary of the United States is Canada :)
That depends on which country is "your country".
Spain forms the eastern boundary of Portugal.
The country is Eritrea, and it's eastern boundary is formed by the Red Sea.
Polk's Secretary of State, James Buchanan negotiated a treaty with Great Britain that provided a peaceful solution to the Oregon boundary dispute. They settled for less than the 54th parallel boundary Polk had campaigned for .
India
Spain is the only country to border Portugal to the east.
Canada was the country that controlled territory to the north of the United States boundary.
Vietnam was split at the 17th parallel
Yes, England negotiated with the US over the Oregon boundary. The Oregon Treaty of 1846 established the border between the two countries at the 49th parallel, resolving the territorial dispute over the Oregon Country. Both countries agreed to joint occupancy of the territory prior to the treaty.