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Uber Technologies, Inc., commonly referred to as Uber, is an American multinational transportation company that provides ride-hailing services, courier services, food delivery, and freight transport. [1] It is headquartered in San Francisco, California, and operates in approximately 70 countries and 10,500 cities worldwide. [1]
The history of the monarchy of the United Kingdom and its evolution into a constitutional and ceremonial monarchy is a major theme in the historical development of the British constitution. The British monarchy traces its origins to the petty kingdoms of Anglo-Saxon England and early medieval Scotland , which consolidated into the kingdoms of ...
The history of the Pitcairn Islands begins with the colonization of the islands by Polynesians in the 11th century. Polynesian people established a culture that flourished for four centuries and then vanished. They lived on Pitcairn and Henderson Islands, and on Mangareva Island 540 kilometres (340 mi) to the northwest, for about 400 years.
Medieval Russian states around 1470, including Novgorod, Tver, Pskov, Ryazan, Rostov and Moscow. The history of Russia begins with the histories of the East Slavs. [1] [2] The traditional start date of specifically Russian history is the establishment of the Rus' state in the north in 862, ruled by Varangians.
t. e. The number π ( / paɪ /; spelled out as " pi ") is a mathematical constant that is the ratio of a circle 's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics.
Facebook is a social networking service originally launched as TheFacebook on February 4, 2004, before changing its name to simply Facebook in August 2005. [1] It was founded by Mark Zuckerberg, Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes. [2]
The history of the island of Taiwan dates back tens of thousands of years to the earliest known evidence of human habitation. [1] [2] The sudden appearance of a culture based on agriculture around 3000 BC is believed to reflect the arrival of the ancestors of today's Taiwanese indigenous peoples. [3]
