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A salt road (also known as a salt route, salt way, saltway, or salt trading route) is any of the prehistoric and historical trade routes by which essential salt has been transported to regions that lacked it (see History of salt). From the Bronze Age (in the 2nd millennium BC) fixed transhumance routes appeared, like the Ligurian ''drailles'' that linked the maritime Liguria with the ''alpages'', long before any purposely-constructed roadways formed the overland routes by which salt-rich provinces supplied salt-starved ones. ==Roads== The ''Via Salaria'', an ancient Roman road in Italy, eventually ran from Rome (from Porta Salaria in the Aurelian Walls) to ''Castrum Truentinum'' (Porto d'Ascoli) on the Adriatic coast - a distance of . A modern road by this name, part of the SS4 highway, runs from Rome to Osteria Nuova in Orvieto. The Old Salt Route, about , was a medieval route in northern Germany, linking Lüneburg (in Lower Saxony) with the port of Lübeck (in Schleswig-Holstein), which required more salt than it could produce itself. Lüneburg, first mentioned in the 10th century, grew rich on the salterns surrounding the town. Traders shipped salt via Lauenburg, to Lübeck, which supplied all the coasts of the Baltic Sea. Lüneburg and its salt were major factors of power and wealth of the Hanseatic League. After a long period of prosperity, its importance declined after 1600. The last of the salt mines was closed in 1980, ending the thousand-year tradition. In France, the salt route was longer than a portage between navigable streams. Salt unloaded at the ports of Nice and Ventimiglia could travel by two salt roads leading away from the coastal area, from Nice up the Vésubie valley, via Saint-Martin-Vésubie at the head of the valley, or from Ventimiglia inland through the Roya Valley, over the Col de Tende pass and into Piedmont. In Ethiopia blocks of salt, called ''amoleh'', were carved from the salt pans of the Afar Depression, especially around Lake Afrera, then carried by camel west to Atsbi and Ficho in the highland, whence traders distributed them throughout the rest of Ethiopia, as far south as the Kingdom of Kaffa.〔 Richard K. P. Pankhurst, ''Economic History of Ethiopia'' (Addis Ababa: Haile Selassie I University, 1968), pp. 461ff 〕 Before the People's Republic of China annexed Tibet and closed the borders in the 1950s, salt trade between Nepal and Tibet crossed passes through the Himalayas such as the gorges of the upper Karnali and Gandaki rivers. Caravans of pack animals brought rice up from Nepal's Terai and lower hills in exchange for salt from dry lakes on the Tibetan Plateau. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Salt road」の詳細全文を読む スポンサード リンク
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