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22 hours ago · The timeline of historic inventions is a chronological list of particularly important or significant technological inventions and their inventors, where known. [a] History of technology By technological eras Premodern Prehistoric Stone Age (lithic) Neolithic Revolution Copper Age Bronze Age Iron Age Ancient Modern Proto-industrialization First Industrial Revolution Standardization Second ...
22 hours ago · Human history is the development of humankind from prehistory to the present, understood through the study of written records, archaeology, anthropology, genetics, linguistics, and other forms of evidence. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers.
22 hours ago · The Hudson's Bay Company ( HBC; French: Compagnie de la Baie d'Hudson) is a Canadian retail business group. A fur trading business for much of its existence, it became the largest and oldest corporation in Canada, and now owns and operates retail stores across the country. [3] [4] The company's namesake business division is Hudson's Bay ...
22 hours ago · Japan portal. v. t. e. The first human inhabitants of the Japanese archipelago have been traced to the Paleolithic, around 38–39,000 years ago. [1] The Jōmon period, named after its cord-marked pottery, was followed by the Yayoi period in the first millennium BC when new inventions were introduced from Asia.
22 hours ago · The Cold War was a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc, that started in 1947, two years after the end of World War II and lasted to 1991, the fall of the Soviet Union. The term cold war is used because there was no large-scale fighting ...
22 hours ago · Properties Form and structure Gallium crystals Most metals are shiny and lustrous, at least when polished, or fractured. Sheets of metal thicker than a few micrometres appear opaque, but gold leaf transmits green light. This is due to the freely moving electrons which reflect light. Although most elemental metals have higher densities than nonmetals, there is a wide variation in their ...
22 hours ago · Alaska ( / əˈlæskə / ⓘ ə-LASS-kə) is a non-contiguous U.S. state on the northwest extremity of North America. It is in the Western United States region. The only other non-contiguous U.S. state is Hawaii. Alaska is also considered to be the northernmost, westernmost, and easternmost (the Aleutian Islands cross the antimeridian into the ...
