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Umayyad Empire
The Umayyad Caliphate or Umayyad Empire (UK: /uː ˈ m aɪ j æ d / ,US: /uː ˈ m aɪ æ d / ;Arabic: ٱلْخِلَافَة ٱلْأُمَوِيَّة , romanized: al-Khilāfa al-Umawiyya ) was the second caliphate established a
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Terrestrial time
Terrestrial Time (TT) is a modern astronomical time standard defined by the International Astronomical Union, primarily for time-measurements of astronomical observations made from the surface of E
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Kreis Riga
Riga county (Latvian: Rīgas apriņķis, German: Kreis Riga, Russian: Рижскій уѣздъ , romanized: Rizhskiy uyezd ) was a historic county of the Duchy of Livonia, the Governorate of Livonia, and the Rep
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Tuvaluan language
Tuvaluan (/ˌ t uː v ə ˈ l uː ə n / ), often called Tuvalu, is a Polynesian language closely related to the Ellicean group spoken in Tuvalu. It is more or less distantly related to all other Polynes
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Water masses
An oceanographic water mass is an identifiable body of water with a common formation history which has physical properties distinct from surrounding water. Properties include temperature, salinity,
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Cerulean flycatcher
The cerulean flycatcher (Eutrichomyias rowleyi) is a medium-sized (up to 18 cm long), blue passerine with bright cerulean blue plumage, a bare white orbital ring, dark brown iris, bluish black bill
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Polynesian peoples
Polynesians are an ethnolinguistic group comprising closely related ethnic groups native to Polynesia, which encompasses the islands within the Polynesian Triangle in the Pacific Ocean. They trace
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Temperature–salinity diagram
In oceanography, temperature-salinity diagrams, sometimes called T-S diagrams, are used to identify water masses. In a T-S diagram, rather than plotting each water property as a separate "profile,"
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Puerto Vallarta
Puerto Vallarta (Spanish pronunciation: [ˈpweɾto βaˈʎaɾta] or simply Vallarta) is a Mexican resort city near the Bahía de Banderas on the Pacific coast of the Mexican state of Jalisco. Puerto Valla
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Gunung Awu
Mount Awu (Indonesian: Gunung Awu) is the largest stratovolcano in the Sangihe Islands chain, located on Sangir Island in North Sulawesi, Indonesia. Powerful eruptions have occurred in 1711, 1812,
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