Early sources Herodotus. The earliest extant source that mentions Hyperborea in detail, Herodotus' Histories (Book IV, Chapters 32–36), dates from c. 450 BC. Herodotus recorded three earlier sources that supposedly mentioned the Hyperboreans, including Hesiod and Homer, the latter purportedly having written of Hyperborea in his lost work Epigoni.

Rodinia (from the Russian родина, rodina, meaning "motherland, birthplace") was a Mesoproterozoic and Neoproterozoic supercontinent that assembled 1.26–0.90 billion years ago and broke up 750–633 million years ago. Valentine & Moores 1970 were probably the first to recognise a Precambrian supercontinent, which they named 'Pangaea I'. It was renamed …

The African and European mainlands are non-contiguous, and the delineation between these continents is thus merely a question of which islands are to be associated with which continent. The Portuguese Atlantic island possession of the Azores is 1,368 km (850 mi) from Europe and 1,507 km (936 mi) from Africa, and is sometimes grouped with Europe.

Talc, or talcum, is a clay mineral, composed of hydrated magnesium silicate with the chemical formula Mg 3 Si 4 O 10 (OH) 2.Talc in powdered form, often combined with corn starch, is used as baby powder.This mineral is used as a thickening agent and lubricant.It is an ingredient in ceramics, paints, and roofing material.It is a main ingredient in many cosmetics.

Regions. The Appalachian Mountains include three major sections: Northern: The northern section runs from the Canadian province of Newfoundland and Labrador to the Hudson River.It includes the Long Range Mountains and Annieopsquotch Mountains on the island of Newfoundland, the French Territorial Collectivity of Saint-Pierre and Miquelon southwest of …

India is situated north of the equator between 8°4' north (the mainland) to 37°6' north latitude and 68°7' east to 97°25' east longitude. It is the seventh-largest country in the world, with a total area of 3,287,263 square kilometres (1,269,219 sq mi).. On the south, India projects into and is bounded by the Indian Ocean—in particular, by the Arabian Sea on the west, the …

Transcontinental country in Africa and Asia, classified as a Northern African country by the United Nations Statistics Division: Egypt ().; Transcontinental country in Europe and Asia, classified as an Eastern European country by the United Nations Statistics Division: Russia ().; States mostly or entirely in West Asia, but commonly associated with Europe, and a member of the Council of …

The geography of Australia encompasses a wide variety of biogeographic regions being the world's smallest continent, while comprising the territory of the sixth-largest country in the world.The population of Australia is concentrated along the eastern and south-eastern coasts. The geography of the continent is extremely diverse, ranging from the snow-capped mountains of …