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An official language is a language having certain rights to be used in defined situations. These rights can be created in written form or by historic usage.178 countries recognize an official langu…

A sense is a biological system used by an organism for sensation, the process of gathering information about the surroundings through the detection of stimuli. Although, in some cultures, five huma…

Mathematics is a field of study that discovers and organizes methods, theories and theorems that are developed and proved for the needs of empirical sciences and mathematics itself. There are many …

Vietnam, officially the Socialist Republic of Vietnam, is a country at the eastern edge of mainland Southeast Asia, with an area of about 331,000 square kilometres (128,000 sq mi) and a population …

The Austroasiatic languages (/ˌ ɒ s t r oʊ . eɪ ʒ i ˈ æ t ɪ k , ˌ ɔː -/ OSS -troh-ay-zhee-AT -ik, AWSS-) are a large language family spoken throughout Mainland Southeast Asia, South Asia and East A…

LNER Class A4 4468 Mallard is a 4-6-2 ("Pacific") steam locomotive built in 1938 for operation on the London and North Eastern Railway (LNER) at Doncaster Works to a design of Nigel Gresley. Its st…

Chữ Hán (Vietnamese: 𡨸漢 [t͡ɕɨ˦ˀ˥ haːn˧˦] , lit. ' Han characters ' ) are the Chinese characters that were used to write Literary Chinese (Hán văn ; 漢文 ) and Sino-Vietnamese vocabulary in Vietnamese…

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Vietnamese (Tiếng Việt ) is an Austroasiatic language spoken primarily in Vietnam where it is the official language. It belongs to the Vietic subgroup of the Austroasiatic language family. Vietname…

Reality is the sum or aggregate of all objects that exist, as opposed to being imaginary, nonexistent, or nonactual. The meaning of the term can vary depending on the context. In ontology, it refer…