
The Federated States of Micronesia are located on the Caroline Islands in the western Pacific Ocean. The history of the modern Federated States of Micronesia is one of settlement by Micronesians; colonization by Spain, Germany, and Japan; United Nations trusteeship under United States-administered Trust Territory of the Pacific Islands; and gradual independence beginning with the ratification of a sovereign constitution in 1979.

German New Guinea consisted of the northeastern part of the island of New Guinea and several nearby island groups and was the first part of the German colonial empire. The mainland part of the territory, called Kaiser-Wilhelmsland, became a German protectorate in 1884. Other island groups were added subsequently. New Pomerania, the Bismarck Archipelago, and the northern Solomon Islands were declared a German protectorate in 1885; the Caroline Islands, Palau, and the Mariana Islands were bought from Spain in 1899; the protectorate of the Marshall Islands was bought from Spain in 1885 for $4.5 million by the 1885 Hispano-German Protocol of Rome; and Nauru was annexed to the Marshall Islands protectorate in 1888.

The German–Spanish Treaty of 1899, signed by the German Empire and the Kingdom of Spain, involved Spain selling the vast majority of its remaining Pacific Ocean islands to Germany for 25 million pesetas.

Operation Hailstone, 17–18 February 1944, was a massive United States Navy air and surface attack on Truk Lagoon conducted as part of the American offensive drive against the Imperial Japanese Navy (IJN) through the Central Pacific Ocean during World War II.

Operation Inmate was an attack by the British Pacific Fleet against Japanese positions on Truk Atoll in the central Pacific Ocean during the Second World War. The attacks against the isolated islands on 14 and 15 June 1945 were conducted to provide combat experience for the aircraft carrier HMS Implacable and several of the fleet's cruisers and destroyers ahead of their involvement in more demanding operations off the Japanese home islands.

Friedrich Benjamin Graf von Lütke, more commonly known by his Russian name Fyodor Litke, was a Russian navigator, geographer, and Arctic explorer. He became a count in 1866, and an admiral in 1855. He was a corresponding member (1829), Honorable Member (1855), and President (1864) of the Russian Academy of Science in St. Petersburg. He was also an Honorable Member of many other Russian and foreign scientific establishments, and a corresponding member of the French Academy of Science in Paris.

Pohnpei State is one of the four states of the Federated States of Micronesia (FSM). The other states are, from the east to west, Kosrae State, Chuuk State, and Yap State. The state's principal island is Pohnpei.

The Saudeleur Dynasty was the first organized government uniting the people of Pohnpei island, ruling from around 1100 to around 1628. The era was preceded by the Mwehin Kawa or Mwehin Aramas, and followed by Mwehin Nahnmwarki. The name Deleur was an ancient name for Pohnpei, today a state containing the capital of the Federated States of Micronesia.

The South Seas Mandate, officially the Mandate for the German Possessions in the Pacific Ocean lying North of the Equator, was a League of Nations mandate in the "South Seas" given to the Empire of Japan by the League of Nations following World War I. The mandate consisted of islands in the north Pacific Ocean that had been part of German New Guinea within the German colonial empire until they were occupied by Japan during World War I. Japan governed the islands under the mandate as part of the Japanese colonial empire until World War II, when the United States captured the islands. The islands then became the United Nations-established Trust Territory of the Pacific Islands governed by the United States. The islands are now part of Palau, Northern Mariana Islands, Federated States of Micronesia, and Marshall Islands.

The Spanish East Indies were the overseas territories of the Spanish Empire in Asia and Oceania from 1565 to 1901, governed from Manila in the Spanish Philippines. The territories included:the Captaincy General of the Philippines (1565-1898) the Marianas (1667-1898/1899) the Carolines (1528-1899) Palaos (1574-1899) Guam (1665-1899) parts of Formosa (Taiwan) (1626-1642) parts of Sulawesi (Celebes) parts of the Moluccas (Maluku) (1580-1663)

The Trust Territory of the Pacific Islands (TTPI) was a United Nations trust territory in Micronesia administered by the United States from 1947 to 1994.

Yap State is one of the four states of the Federated States of Micronesia (FSM). The other states are Kosrae State, Pohnpei State, and Chuuk State.