In 1890-1893 its shores were divided by treaty between Great Britain, France and Germany.
The border issue was finally resolved by the Webster-Ashburton treaty of 1842.
In the treaty, language describing the border between the United States and Canada, still part of Great Britain, included this:
The treaty of Tubingen is the name given in German history to an arrangement made in 1514 between Duke Ulrich and his subjects, by which the latter acquired various rights and privileges on condition of relieving the former of his debts.
On the 17th of May 1517 the bishop of Dunkeld proceeded with Albany to France to conduct the negotiations which ended in the treaty of Rouen.