WThe Adams–Onís Treaty of 1819, also known as the Transcontinental Treaty, the Florida Purchase Treaty, or the Florida Treaty, was a treaty between the United States and Spain in 1819 that ceded Florida to the U.S. and defined the boundary between the U.S. and New Spain. It settled a standing border dispute between the two countries and was considered a triumph of American diplomacy. It came in the midst of increasing tensions related to Spain's territorial boundaries in North America against the United States and the United Kingdom in the aftermath of the American Revolution; it also came during the Latin American wars of independence.
WThe Alaska Purchase was the United States' acquisition of Alaska from the Russian Empire. Alaska was formally transferred to the United States on October 18, 1867, through a treaty ratified by the United States Senate.
WThe Caroline Islands are a widely scattered archipelago of tiny islands in the western Pacific Ocean, to the north of New Guinea. Politically, they are divided between the Federated States of Micronesia in the eastern part of the group, and Palau at the extreme western end. Historically, this area was also called Nuevas Filipinas or New Philippines, because they were part of the Spanish East Indies and were governed from Manila in the Philippines.
WThe Treaty of the Danish West Indies, officially the Convention between the United States and Denmark for cession of the Danish West Indies, was a 1916 treaty transferring sovereignty of the Virgin Islands in the Danish West Indies from Denmark to the United States in exchange for a sum of US$25,000,000 in gold. It is one of the most recent permanent expansions of United States territory.
WThe Gadsden Purchase is a 29,670-square-mile (76,800 km2) region of present-day southern Arizona and southwestern New Mexico that the United States acquired from Mexico by the Treaty of Mesilla, which took effect on June 8, 1854. The purchase included lands south of the Gila River and west of the Rio Grande where the U.S. wanted to build a transcontinental railroad along a deep southern route, which the Southern Pacific Railroad later completed in 1881–1883. The purchase also aimed to resolve other border issues.
WThe German–Spanish Treaty of 1899, signed by the German Empire and the Kingdom of Spain, involved Spain selling the remainder of its Pacific possessions not lost in the Spanish–American War to Germany for 25 million pesetas.
WGwadar is a port city on the southwestern coast of Balochistan, Pakistan. The city is located on the shores of the Arabian Sea opposite Oman. Gwadar was an overseas possession of Oman from 1783 to 1958. It is about 120 km (75 mi) southwest of Turbat, while the sister port city of Chabahar in Iran's Sistan and Baluchestan Province is about 170 km (110 mi) to the west of Gwadar.
WThe Jäniskoski-Niskakoski area is a 176 square kilometer area in Russian Lapland, east of Lake Inari, along the Paatsjoki River. Finland sold the area to the Soviet Union on 18 April 1947 due to the Jäniskoski hydroelectric plant in the area and the Niskakoski reservoir. The Jäniskoski-Niskakoski area was not part of the Soviet Union's original territorial requirements.
WSaint Barthélemy, officially the Collectivité territoriale de Saint-Barthélemy, is an overseas collectivity of France in the Caribbean. It is often abbreviated to St-Barth in French, and St. Barths or St. Barts in English. The island lies about 35 kilometres (22 mi) south-east of the Caribbean island Saint Martin, and is north-east of the Dutch islands of Saba, Sint Eustatius, and the independent country of Saint Kitts and Nevis.
WThe Duchy of Saxe-Lauenburg, was a reichsfrei duchy that existed 1296–1803 and 1814–1876 in the extreme southeast region of what is now Schleswig-Holstein. Its territorial center was in the modern district of Herzogtum Lauenburg and originally its eponymous capital was Lauenburg upon Elbe, though in 1619 the capital moved to Ratzeburg.