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In most non-English-speaking countries Oceania is treated as a continent in the sense that it is "one of the parts of the world", and Australia is only seen as an island nation. In other non-English-speaking countries Australia and Eurasia are thought of as continents, while Asia, Europe, and Oceania are regarded as "parts of the world".
This is a list of sovereign states and dependent territories in the geographical region of Oceania. Although it is mostly ocean and spans many tectonic plates, Oceania is occasionally listed as one of the continents. Most of this list follows the boundaries of geopolitical Oceania, which includes Australasia, Melanesia, Micronesia, and Polynesia.
Location of Oceania. The following outline is provided as an overview and topical guide to Oceania. Oceania is a geographical, and geopolitical, region consisting of numerous lands—mostly islands in the Pacific Ocean and vicinity. The term is also sometimes used to denote a continent comprising Australia and proximate Pacific islands. [1] [2 ...
Spanning the Eastern and Western hemispheres, at the centre of the water hemisphere, Oceania is estimated to have a land area of about 9,000,000 square kilometres (3,500,000 sq mi) and a population of around 46.3 million as of 2024. Oceania is the smallest continent in land area and the second-least populated after Antarctica.
An island can also be entirely oceanic while still being associated with a continent by geology (e.g. Bermuda, the Australian Indian Ocean Territories) or by common geopolitical convention (e.g. Ascension Island, the South Sandwich Islands). Another example is the grouping into Oceania of the Pacific Islands with Australia and Zealandia.
This is a list of Oceanian countries and dependencies by population in Oceania, which includes Australasia, Melanesia, Micronesia and Polynesia. Projections are from the United Nations [1] and official figures are from the Pacific Community [2] and other official sources.
Oceania was first explored by Europeans from the 16th century onwards. Portuguese navigators, between 1512 and 1526, reached the Moluccas (by António de Abreu and Francisco Serrão in 1512), Timor , the Aru Islands (Martim A. Melo Coutinho), the Tanimbar Islands , some of the Caroline Islands (by Gomes de Sequeira in 1525), and west Papua New ...
Geologically, an ocean is an area of oceanic crust covered by water. Oceanic crust is the thin layer of solidified volcanic basalt that covers the Earth's mantle. Continental crust is thicker but less dense. From this perspective, the Earth has three oceans: the World Ocean, the Caspian Sea, [citation needed] and the Black Sea.