Question: Who are the former Americas historical territorial settled dispute claimants of the territory that was resolved through papal mediation ?

text: List of territorial disputes
Historical disputes , subsequently settled -- Americas

Territorial disputes have occurred throughout history, over lands around the world. Bold indicates one claimant's full control; italics indicates one or more claimants' partial control.
Territory Former claimants Dispute started Dispute settled Notes
Alaska boundary dispute United States Canada 1821 1903 Disputed between the United States and Canada ( then a British Dominion with its foreign affairs controlled from London ) . The dispute had been going on between the Russian and British Empires since 1821 , and was inherited by the United States as a consequence of the Alaska Purchase in 1867 . It was resolved by arbitration in 1903 with a delegation that included 3 Americans , 2 Canadians , and 1 British delegate that became the swing vote . By a 4 to 2 vote , the final resolution favored the American position . Canada did not get an outlet from the Yukon gold fields to the sea . The disappointment and anger in Canada was directed less at the United States , and more at the British government for betraying Canadian interests in pursuit of a friendly relationship between Britain and the United States
Aroostook War United States British North America 1838 1842 Disputed border between the state of Maine and the provinces of New Brunswick and Lower Canada
Atacama border dispute Bolivia Chile 1879 1904
Guaíra Falls/Sete Quedas Brazil Paraguay 1872 1980 The disputed islands were submerged by the reservoir of Itaipú
Chamizal dispute United States Mexico 1898 1963 Disputed border within the El Paso / Ciudad Juárez region
Cresap 's War Maryland Pennsylvania 1730 1767 Dispute over the northern border of the Province of Maryland and southern border of Province of Pennsylvania , particularly west of the Susquehanna River . Settled by the drawing of the Mason-Dixon line
New Hampshire Grants / Vermont New Hampshire/New York/Vermont 1749 1791 In 1664 King Charles II decided the west bank of the Connecticut River was the eastern boundary of New York , so that that province included all of what later became the state of Vermont . During 1749-64 , Governor Benning Wentworth of New Hampshire issued well over a hundred grants , offering lands for sale west of the river in what would become Vermont . In 1764 , King George III attempted to end the dispute by ruling that the region belonged to New York . But New York would not recognize the property claims of numerous settlers whose claims were based on Wentworth 's grants , so local governments and militias resisted New York 's rule . In 1777 , the politicians of the disputed territory declared it independent of New York , Britain , and New Hampshire , calling it the State of Vermont . Vermont existed for 14 years as an unrecognized de facto independent country , considered by New York to be a district in rebellion . Negotiations between New York and Vermont in 1790 removed impediments to Vermont 's admission to the Union in 1791
Delaware Wedge Delaware Maryland Pennsylvania 1750s 1921 A gore created when the borders of the colonies Maryland , Delaware , and Pennsylvania were defined . Dispute over the borders between the three colonies dates to the foundation of each during the middle 17th century . A series of defined lines and arcs were laid out by statute to settle the disputes , the most famous of which was the Mason-Dixon line . The Wedge was left out of all three colonies ( and later U.S. states ) , and remained a matter of dispute until it was formally resolved to assign the Wedge to Delaware in 1921
Eastern shore of the Narragansett Bay Colony of Rhode Island and Providence Plantations Plymouth Colony ( to 1691 ) Province of Massachusetts Bay ( from 1691 ) 1636 1898 Claimed by both Rhode Island and Plymouth Colony . Plymouth 's claim was inherited by the newly created Province of Massachusetts Bay when the latter was created in 1691 from the merger of earlier Massachusetts Bay and Plymouth Colonies . A royal decree in 1746 assigned the land to Rhode Island , but Massachusetts continued to press its claim until 1898
New York - New Jersey Line War New York New Jersey 1701 1756 Dispute over the southern border of Province of New York and the northern border of the Province of New Jersey . Raiding parties kidnapped and burned crops
Isla Martín García Argentina Uruguay 1879 1973 After the Conquest of the Desert was formally launched in 1879 , many indigenous leaders captured were confined there . The island was transferred to Argentine Navy jurisdiction in 1886 . The island 's distance from the Uruguayan territory is less than two miles , and its jurisdictional status was formally established by the Treaty of Río de la Plata between Uruguay and Argentina on November 19 , 1973
Cordillera del Cóndor-Cenepa River Peru Ecuador 1828 1998
Cordillera of the Andes Boundary Case Argentina Chile 1881 1902 After the signature of the Boundary treaty of 1881 between Chile and Argentina differing interpretations on whether the highest Andean peaks ( favouring Argentina ) or the continental divide ( favouring Chile ) was to be considered the boundary
Puna de Atacama dispute Argentina Chile 1889 1898
Clipperton Island Mexico France 1897 1931 Disputed between France and Mexico . On January 28 , 1931 , King Victor Emanuel , selected as a neutral arbitrator , finally declared Clipperton to be a French possession , and it has remained relatively undisputed ever since
Beagle conflict Argentina Chile 1898 1982
Río Encuentro-Alto Palena dispute Argentina Chile 1913 1966
Laguna del Desierto Argentina Chile 1949 1994
Missouri United States Confederate States 1861 1865 After the Missouri secession , the State of Missouri was claimed by both the United States and Confederate States until the defeat of the Confederacy in the American Civil War
Border of New Hampshire and Canada United States United Kingdom 1783 1842 Ill-defined terms of the Treaty of Paris at the end of the Revolutionary War left the boundary of the state of New Hampshire and Canada in doubt . The lack of a precise definition of the northwesternmost head of the Connecticut River as defined by the Treaty of Paris left the land that is now the town of Pittsburg , New Hampshire within the conflicting jurisdiction of both the United States and Great Britain . In 1832 residents of the area established the short-lived Republic of Indian Stream in the area ; the minuscule population of the putative nation never exceeded about 300 . The boundary was finally settled definitively by the Webster-Ashburton Treaty of 1842