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1 天前 · The United Nations Educational, Scientific and Cultural Organization ( UNESCO) [a] is a specialized agency of the United Nations (UN) with the aim of promoting world peace and security through international cooperation in education, arts, sciences and culture. [2] [3] It has 194 member states and 12 associate members, [4] as well as partners in ...
- 16 November 1945; 77 years ago
1 天前 · The archaic human species of Homo erectus arrived in Eurasia sometime between 1.3 and 1.8 million years ago (Ma) and numerous remains of its subspecies have been found in what is now China. The oldest of these is the southwestern Yuanmou Man (元谋人; in Yunnan), dated to c. 1.7 Ma, which lived in a mixed bushland-forest environment alongside chalicotheres, deer, the elephant Stegodon ...
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3 天前 · Guangzhou[a] is the capital and largest city of Guangdong province in southern China.[8] Located on the Pearl River about 120 km (75 mi) north-northwest of Hong Kong and 145 km (90 mi) north of Macau, Guangzhou has a history of over 2,200 years and was a major terminus of the Silk Road.[9] The port of Guangzhou serves as transportation hub and ...
3 天前 · Hong Taiji proclaimed the Great Qing dynasty in 1636. There are competing explanations as to the meaning of the Chinese character 清; qīng; 'clear', 'pure' in this context.One theory posits a purposeful contrast with the Ming: the character 明; Míng is associated with fire within the Chinese zodiacal system, while 清 is associated with water, illustrating the triumph of the Qing as the ...
3 天前 · Columbia University, officially Columbia University in the City of New York, is a private, Ivy League, research university in New York City, United States.Established in 1754 as King's College on the grounds of Trinity Church in Manhattan, it is the oldest institution of higher education in New York and the fifth-oldest in the United States and is considered one of the most prestigious ...
4 天前 · C ( pronounced / ˈsiː / – like the letter c) [6] is a general-purpose computer programming language. It was created in the 1970s by Dennis Ritchie, and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems, device drivers, and ...
4 天前 · Science is a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the world. Modern science is typically divided into three major branches: the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; the social sciences (e.g., economics, psychology, and sociology), which study individuals ...
