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Authors: David Grann
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poison can do harm and no noisy frog croaks, no scorpions are there, and no serpents creep through the grass. No venomous reptiles can exist there or use their deadly power.” Though the letter was likely written as an allegory, it was taken as proof of paradise on earth, which mapmakers placed in the unexplored territories of the Orient. In 1177, Pope Alexander III dispatched his personal physician to extend “to the dearest son in Christ, the famous and high king of the Indians, the holy priest, his greetings and apostolic benediction.” The doctor never returned. Still, the Church and royal courts continued for centuries to send emissaries to locatethis fabulous kingdom. In 1459, the learned Venetian cartographer Fra Mauro created one of the most exhaustive maps of the world. At last, Prester John’s mythic kingdom was wiped from Asia. Instead, in Ethiopia, Mauro had written,
“qui il Presto Janni fa residential principal”—
“here Prester John makes his principal residence.”
Even as late as 1740, it was estimated that fewer than a hundred and twenty places on the planet had been accurately mapped. Because precise portable clocks did not exist, navigators had no means of determining longitude, which is most easily measured as a function of time. Ships plowed into rocks and shoals, their captains convinced that they were hundreds of miles out to sea; thousands of men and millions of dollars’ worth of cargo were squandered. In 1714, Parliament announced that “the Discovery of the Longitude is of such Consequence to Great Britain for the safety of the Navy and Merchant-Ships as well as for the improvement of Trade” that it was offering a twenty-thousand-pound prize—the equivalent today of twelve million dollars—for a “Practical and Useful” solution. Some of the greatest scientific minds tried to solve the problem. Most hoped to use the position of the moon and stars to fix time, but in 1773 John Harrison was recognized as the winner with his more feasible solution: a three-pound, diamond-and-ruby-laden chronometer.
Despite its success, Harrison’s clock could not overcome the main problem that had bedeviled mapmakers: distance. Europeans had not yet traveled to the farthest ends of the earth—the North and South Poles. Nor had they surveyed much of the interior of Africa, Australia, or South America. Cartographers scrawled across these areas on the map a single haunting word: “Unexplored.”
Finally, in the nineteenth century, as the British Empire was increasingly expanding, several English scientists, admirals, and merchants believed that an institution was needed to create a map of the world based on observation rather than on imagination, an organization that detailed both the contours of the earth and everything that lay within them. And so, in 1830, the Royal Geographical Society of London was born. According toits mission statement, the Society would “collect, digest and print. . . new interesting facts and discoveries;” build a repository of “the best books on geography” and “a complete collection of maps;” assemble the most sophisticated surveying equipment; and help launch explorers on their travels. All this was part of its mandate to chart every nook and cranny of the earth. “There was not a square foot of the planet’s surface to which Fellows of this Society should not at least try to go,” a later president of the institution vowed. “That is our business. That is what we are out for.” While the Society would serve as a handmaiden of the British Empire, what it was out for represented a departure from the previous age of discovery, when conquistadores, like Columbus, were dispatched strictly in pursuit of God, gold, and glory. In contrast, the Royal Geographical Society wanted to explore for the sake of exploration—in the name of the newest god, Science.
Within weeks of its unveiling, the Society had attracted nearly five hundred members. “[It] was
“qui il Presto Janni fa residential principal”—
“here Prester John makes his principal residence.”
Even as late as 1740, it was estimated that fewer than a hundred and twenty places on the planet had been accurately mapped. Because precise portable clocks did not exist, navigators had no means of determining longitude, which is most easily measured as a function of time. Ships plowed into rocks and shoals, their captains convinced that they were hundreds of miles out to sea; thousands of men and millions of dollars’ worth of cargo were squandered. In 1714, Parliament announced that “the Discovery of the Longitude is of such Consequence to Great Britain for the safety of the Navy and Merchant-Ships as well as for the improvement of Trade” that it was offering a twenty-thousand-pound prize—the equivalent today of twelve million dollars—for a “Practical and Useful” solution. Some of the greatest scientific minds tried to solve the problem. Most hoped to use the position of the moon and stars to fix time, but in 1773 John Harrison was recognized as the winner with his more feasible solution: a three-pound, diamond-and-ruby-laden chronometer.
Despite its success, Harrison’s clock could not overcome the main problem that had bedeviled mapmakers: distance. Europeans had not yet traveled to the farthest ends of the earth—the North and South Poles. Nor had they surveyed much of the interior of Africa, Australia, or South America. Cartographers scrawled across these areas on the map a single haunting word: “Unexplored.”
Finally, in the nineteenth century, as the British Empire was increasingly expanding, several English scientists, admirals, and merchants believed that an institution was needed to create a map of the world based on observation rather than on imagination, an organization that detailed both the contours of the earth and everything that lay within them. And so, in 1830, the Royal Geographical Society of London was born. According toits mission statement, the Society would “collect, digest and print. . . new interesting facts and discoveries;” build a repository of “the best books on geography” and “a complete collection of maps;” assemble the most sophisticated surveying equipment; and help launch explorers on their travels. All this was part of its mandate to chart every nook and cranny of the earth. “There was not a square foot of the planet’s surface to which Fellows of this Society should not at least try to go,” a later president of the institution vowed. “That is our business. That is what we are out for.” While the Society would serve as a handmaiden of the British Empire, what it was out for represented a departure from the previous age of discovery, when conquistadores, like Columbus, were dispatched strictly in pursuit of God, gold, and glory. In contrast, the Royal Geographical Society wanted to explore for the sake of exploration—in the name of the newest god, Science.
Within weeks of its unveiling, the Society had attracted nearly five hundred members. “[It] was
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