Different groups claim rights to settle in the land of the northwest territory because they won the war.
In the "Scramble for Africa"
The Netherlands Spain Portugal France and Britain still own territory in South America.
Because the Louisiana Territory wasn't divided into free or slave states yet.
United States and Great Britain jointly controlled the Oregon territory.
Both Chile and Argentina claim territory in Antarctica, however, the claims are invalid given the governance of the continent by the Antarctic Treaty.
So far, the new nation of the Republic of South Sudan has made no claim on the Antarctic continent's territory.
Argentina and Chile are among the nation states that claim territory in Antarctica. You can read more about these claims, some of which overlap, below.
the United States
The British Antarctic Territory claim on Antarctica was established in 1908.
Antarctica is a continent and has no nations on it. It is a territory that has been divided by the nations of the world for research and exploration. As such they are not eligible to field a team.
Australia has the largest physical claim in Antarctica, with about 42% of the Antarctic being Australian territory.
None. Nation states claim territory in Antarctica, but the claims are invalid under the Antarctic Treaty.
All current territorial claims -- 100% -- on Antarctica, currently held in abeyance by the Antarctic Treaty, were made by sovereign nations.
Antarctica has the least amount of nations, with none having permanent residents.
Antarctica is a continent without a country. Whilst many countries claim territory in Antarctica, there are none with a permanent population there.
The French make a claim on the Antarctic continent, which is nothing more than a claim. You can read more about France's official claim, below.