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Hace 2 días · The United Nations Educational, Scientific and Cultural Organization ( UNESCO; pronounced / juːˈnɛskoʊ /) [1] [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.
Hace 2 días · Ancient history is a time period from the beginning of writing and recorded human history through late antiquity. The span of recorded history is roughly 5,000 years, beginning with the development of Sumerian cuneiform script and continuing until the expansion of Islam in late antiquity. Ancient history covers all continents inhabited by ...
Hace 1 día · e. The Internet (or internet) [a] is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) [b] to communicate between networks and devices. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad array of ...
Hace 2 días · Cattle. Cattle ( Bos taurus) are large, domesticated, bovid ungulates widely kept as livestock. They are prominent modern members of the subfamily Bovinae and the most widespread species of the genus Bos. Mature female cattle are called cows and mature male cattle are bulls.
Hace 3 días · Passport. Clockwise, from top left: Dutch ordinary, Nepalese diplomatic, Chinese service, and Polish ordinary passports. A passport is an official travel document issued by a government that certifies a person's identity and nationality for international travel. [1] A passport allows its bearer to enter and temporarily reside in a foreign ...
Hace 3 días · Pi is a mathematical constant that represents the ratio of a circle's circumference to its diameter. Learn about its history, properties, and applications in this Wikipedia article.
Hace 2 días · Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. [1] Deforestation can involve conversion of forest land to farms, ranches, or urban use. About 31% of Earth's land surface is covered by forests at present. [2]
