megadrought
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Megadrought — A megadrought (or mega drought) is a prolonged drought lasting two decades or longer. Past megadroughts have been associated with persistent multiyear La Niña conditions (cooler than normal water temperatures in the tropical eastern Pacific… … Wikipedia
Classic Maya collapse — Maya civiliza … Wikipedia
Colegio de la Santa Cruz de Tlatelolco — Los últimos restos del Colegio de Santa Cruz corresponden al Templo de Santiago, ubicado en la Plaza de las Tres Culturas de Tlatelolco (México). El Colegio de la Santa Cruz de Santiago Tlatelolco fue la primera institución de educación superior… … Wikipedia Español
Археология в Омане — Хронология Омана. Современный султанат Оман находится на юго востоке Аравийского полуострова. В данной статье рассматривается дописьменный период истории Омана (до при … Википедия
Human skin color — Skin pigmentation redirects here. For animal skin pigmentation, see Biological pigment. Variety of skin colors Human skin color is primarily due to the presence of melanin in the skin. Skin color ranges from almost black to white with a pinkish… … Wikipedia
Population history of American indigenous peoples — It is thought that up to 100 million indigenous people may have lived in the Americas when the 1492 voyage of Christopher Columbus began a historical period of large scale European interaction with the Americas. European contact with what they… … Wikipedia
Viral hemorrhagic fever — Classification and external resources ICD 10 A96 A … Wikipedia
Санта-Крус де Тлателолько — Площадь Трёх Культур в Мехико. Здесь располагалась коллегия Санта Крус Коллегиум Санта Крус де Тлателолько или Санта Крус де Сантьяго Тлателолько ( … Википедия
Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… … Universalium
Population history of indigenous peoples of the Americas — Natives of North America. Natives of South America. The po … Wikipedia
