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The Spanish treasure fleet, or West Indies Fleet from Spanish ''Flota de Indias'', also called silver fleet or plate fleet (from the Spanish ''plata'' meaning "silver"), was a convoy system adopted by the Spanish Empire from 1566 to 1790, linking Spain with its territories in the Americas across the Atlantic. The convoys were general purpose cargo fleets used for transporting a wide variety of items, including agricultural goods, lumber, various metal resources, luxuries, silver, gold, gems, pearls, spices, sugar, tobacco, silk, and other exotic goods from the Spanish Empire to the Spanish mainland. Passengers and goods such as textiles, books and tools were transported in the opposite direction.〔Marx, Robert: ''Treasure lost at sea: diving to the world's great shipwrecks.'' Firefly Books, 2004, page 66. ISBN 1-55297-872-9〕〔Marx, Robert: ''The treasure fleets of the Spanish Main.'' World Pub. Co., 1968〕 The West Indies fleet was the first permanent transatlantic trade route in history. Similarly, the Manila galleons were the first permanent trade route across the Pacific. ==History== Spanish ships had brought goods from the New World since Christopher Columbus's first expedition of 1492. The Spanish government started a system of convoys in the 1560s in response to the sacking of Havana by French privateers. The main procedures were established after the recommendations of Pedro Menéndez de Avilés, an experienced admiral and personal adviser of King Philip II.〔Walton, pp. 46-47〕 The treasure fleets sailed along two sea lanes. The main one was the Caribbean Spanish West Indies fleet or ''Flota de Indias'', which departed in two convoys from Seville, where the ''Casa de Contratación'' was based, bound for ports such as Veracruz, Portobelo and Cartagena before making a rendezvous at Havana in order to return together to Spain.〔Nolan, Cathal: ''The age of wars of religion, 1000-1650: an encyclopedia of global warfare and civilization.'' Greenwood Publishing Group, 2006, page 177. ISBN 0-313-33733-0〕 A secondary route was that of the Manila Galleons or ''Galeón de Manila'' which linked the Philippines to Acapulco in Mexico across the Pacific Ocean. From Acapulco, the Asian goods were transhipped by mule train to Veracruz to be loaded on to the Caribbean treasure fleet for shipment to Spain.〔Borrell, Miranda: ''The grandeur of Viceregal Mexico: treasures from the Museo Franz Mayer.'' University of Texas Press, 2002, page 23. ISBN 0-89090-107-4〕〔Walton, pp. 46-47〕 To better defend this trade, Pedro Menéndez de Avilés and Álvaro de Bazán designed the definitive model of the galleon in the 1550s.〔Walton, p. 57〕 Spain controlled the trade through the ''Casa de Contratación'' based in Seville. By law, the colonies could trade only with the one designated port in the mother country, Seville.〔Walton, page 30〕 Maritime archaeology has shown that the quantity of goods transported was sometimes higher than that recorded at the ''Archivo General de Indias''. Spanish merchants and Spaniards acting as fronts (''cargadores'') for foreign merchants sent their goods on these fleets to the New World. Some resorted to contraband to transport their cargoes untaxed.〔Carrasco González, María Guadalupe: ''Comerciantes y casas de negocios en Cádiz, 1650-1700.'' Servicio Publicaciones UCA, 1997, pp. 27-30. ISBN 84-7786-463-2 〕 The Crown of Spain taxed the wares and precious metals of private merchants at a rate of 20%, a tax known as the ''quinto real'' or the Royal One-fifth.〔Walton, page 226〕 Spain became the richest country in Europe by the end of the 16th century,.〔Danbom, David B.: ''Born in the country: a history of rural America.'' Johns Hopkins University Press, 2006, page 20. ISBN 0-8018-8458-6〕 Much of the wealth from this trade was used by the Spanish Habsburgs to finance armies to protect its European territories in the 16th and 17th centuries against the Ottoman Empire and with most of the major European powers. The flow of precious metals also made many traders wealthy both in Spain and abroad. The increase in gold and silver on the Iberian market sometimes caused high inflation in the 17th century, affecting the Spanish economy.〔Walton, pp. 84-85〕 As a consequence, the Crown was forced to delay the payment of some major debts, which had negative consequences for its lenders, mostly foreign bankers. By 1690 some of these lenders could no longer offer financial support to the Crown.〔Walton, page 145〕 The Spanish monopoly over its West and East Indies colonies lasted for over two centuries. The economic importance of exports later declined with the drop of production of the American precious metals mines, such as Potosí.〔Walton, page 136〕 However, the growth in trade was strong in the early years. Numbering just 17 ships in 1550, the fleets expanded to more than 50 much larger vessels by the end of the century. By the second half of the 17th century, that number had dwindled to less than half of its peak.〔Walton, page 138〕 As economic conditions gradually recovered from the last decades of the 17th century, the fleet operations slowly expanded again, once again becoming prominent during the reign of the Bourbons in the 18th century.〔Walton, page 177〕 The Spanish trade of goods was sometimes threatened by its colonial rivals who tried to seize islands as bases along the Spanish Main and in the Spanish West Indies. However, the Atlantic trade was largely unharmed. The English acquired small islands like St Kitts in 1624, expelled in 1629 they returned in 1639 and seized Jamaica in 1655. French pirates established themselves in Saint-Domingue in 1625, were expelled only to return later and the Dutch occupied Curaçao in 1634. In 1739, British Admiral Edward Vernon raided Portobello, but in 1741 his great campaign against Cartagena de Indias ended in defeat with heavy losses of men and ships. Temporary British seizures of Havana and Manila (1762-4), during the Seven Years' War, were dealt with by using more, smaller fleets visiting a greater variety of ports. Charles III began loosening the system in 1765. In the 1780s Spain opened its colonies to free trade.〔Buckle, Thomas: ''History of civilization in England.'' Parker, Son, and Bourn, 1861, v. 2, pp. 93-94〕 In 1790, the ''Casa de Contratación'' was abolished, bringing to an end the great general purpose fleets. Thereafter small groups of naval frigates were assigned specifically to transferring goods or bullion as required.〔Walton, page 180〕 Despite the general perception that many Spanish galleons were captured by foreign privateers, few fleets were actually lost to enemies in the course of the ''flota's'' two and a half centuries of operation. Only Piet Hein managed to capture the fleet in 1628 and bring the stolen ship's cargo to the Dutch Republic.〔Walton, page 121〕 In 1656 and 1657 Robert Blake also attacked the fleet, but the Spanish officers saved most of the silver on board and the English admiral managed to capture only a single galleon.〔Walton, page 129〕 The 1702 West Indies fleet was destroyed in the Battle of Vigo Bay during the War of the Spanish Succession, when the fleet was surprised at port unloading its goods, but the Spanish sailors had already unloaded most of its cargo.〔Walton, pp. 154-155〕 None of these attacks took place in open seas. In the case of the Manila galleons, only four were ever captured by British warships in nearly three centuries: The ''Santa Anna'' by Thomas Cavendish in 1589, the ''Encarnación'' in 1709 by Woodes Rogers, the ''Covadonga'' by George Anson in 1743, and the ''Santísima Trinidad'' in 1762. Two other British attempts were foiled by the ''Rosario'' in 1704 and the ''Begonia'' in 1710.〔(Murray )〕 These losses and those due to hurricanes were important economic blows to trade when they occurred. The fleets, however, must be counted as among the most successful naval operations in history.〔Walton, page 189〕〔Konstam, Angus and Cordingly, Daviv (2002).''The History of Pirates''. The Lyons Press, p. 68. ISBN 1-58574-516-2〕 Moreover, from a commercial point of view, some key components of today's world economic system were made possible by the success of the Spanish West and East Indies fleets.〔Walton, page 191〕 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「Spanish treasure fleet」の詳細全文を読む スポンサード リンク
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