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YouTube is an American online video sharing and social media platform owned by Google. Accessible worldwide, [note 1] it was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim, three former employees of PayPal.
The English word lion is derived via Anglo-Norman liun from Latin leōnem (nominative: leō), which in turn was a borrowing from Ancient Greek λέων léōn. The Hebrew word לָבִיא lavi may also be related. The generic name Panthera is traceable to the classical Latin word 'panthēra' and the ancient Greek word πάνθηρ 'panther ...
Alan Turing. Alan Mathison Turing OBE FRS ( / ˈtjʊərɪŋ /; 23 June 1912 – 7 June 1954) was an English mathematician, computer scientist, logician, cryptanalyst, philosopher and theoretical biologist. [5] Turing was highly influential in the development of theoretical computer science, providing a formalisation of the concepts of algorithm ...
China, [j] officially the People's Republic of China ( PRC ), [k] is a country in East Asia. With a population exceeding 1.4 billion, it is the world's second-most populous country. China spans the equivalent of five time zones and borders fourteen countries by land.
The United Nations headquarters has been situated along the East River in Midtown Manhattan since 1952; in 1945, the United States was a founding member of the UN. The United States has an established structure of foreign relations, and it has the world's second-largest diplomatic corps as of 2024.
Visna-maedi virus. The human immunodeficiency viruses ( HIV) are two species of Lentivirus (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), [1] [2] a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. [3]
The UEFA Champions League (previously known as the European Cup, abbreviated as UCL, or sometimes, UEFA CL) is an annual club association football competition organised by the Union of European Football Associations (UEFA) and contested by top-division European clubs, deciding the competition winners through a round robin group stage to qualify for a double-legged knockout format, and a single ...
