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Hace 17 horas · World Travel Hacker es un desafío en el que los candidatos y su compañero de viaje pueden optar a este premio, con un presupuesto de 10.000 euros
Hace 17 horas · History Pre-industrial era Elevator design by the German engineer Konrad Kyeser (1405). The earliest known reference to an elevator is in the works of the Roman architect Vitruvius, who reported that Archimedes (c. 287 BC – c. 212 BC) built his first elevator probably in 236 BC. Sources from later periods mention elevators as cabs on a hemp rope, powered by people or animals.
Hace 17 horas · The recorded revenues of the central Qing government increased little over the course of the 18th and early 19th century from 36,106,483 taels in 1725 to 43,343,978 taels in 1812 before declining to 38,600,570 taels in 1841, the land tax was the principal source of revenue for the central government with the salt, customs and poll taxes being important secondary sources.
Hace 17 horas · Portland (/ ˈ p ɔːr t l ə n d / PORT-lənd) is a port city in the Pacific Northwest and the most populous city in the U.S. state of Oregon.Situated in the northwestern area of the state at the confluence of the Willamette and Columbia rivers, it is the county seat of Multnomah County, Oregon's most populous county.As of 2020, Portland's population was 652,503, making it the 26th-most ...
