Since 1503, the Spanish port of Seville had been home to the Casa de Contratación, or House of Trade. In one sense, the Casa was an administrative centre. It was where all taxes and duties on trade with the New World were collected. In another sense, however, it was the sixteenth century’s most important research and development hub. It was where the maps were made. Anyone who crossed the Atlantic was to check in with the Casa and share their information. There, the expert pilots, astronomers, mathematicians, and cartographers, were to sort out the sailors’ tall tales from the careful observations of coastlines. The Casa institutionalised the practice of gathering information – everything from the locations of safe havens or treacherous rocks, to the willingness of local populations to talk to strangers, to the raw materials glimpsed in newfound lands – all to be collated, evaluated, and then re-disseminated into manuals, lectures, and maps. It was where new pilots were instructed, and where navigational instruments were constructed and regulated. The Casa was a living encyclopaedia of navigation, for every would-be Spanish merchant, coloniser, or explorer to consult.
And it was something that the English tried, for decades, to emulate. Before they embarked on their first explorations of the icy seas around Russia in the 1550s, they first poached the Casa‘s principal navigator, the Pilot Major, Sebastian Cabot. And later, during the few years that England and Spain were united in matrimony, under Mary I, one English navigator, Stephen Borough, had the chance to visit and glean some of its secrets. He was instrumental in having Spain’s key navigational manual translated in English, and he petitioned Elizabeth I to create an English version of the Casa. That dream never materialised, but the quest to emulate the Casa informed many of the smaller-scale projects — lectures, manuals, globes, and maps — which meant that the English did not sail completely into the unknown.
Anton Howes, “The House of Trade”, Age of Invention, 2019-11-13.
May 8, 2024
QotD: Imperial Spain’s “House of Trade”
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