Quotulatiousness

April 20, 2020

QotD: The Columbus myth

Filed under: Americas, Europe, History, Quotations, Science — Tags: , , — Nicholas @ 01:00

My conclusion was that the Rabbi’s view of the history of the ketubah fitted a pattern I have seen in other contexts — moderns believing in bogus history that supports their self image of superiority to those ignorant and unreasonable people in the past.

My favorite example is the Columbus myth, the idea that the people who argued against Columbus were ignorant flat-earthers who thought his ships would sail off the edge. That is almost the precise opposite of the truth. By the time Columbus set off, a spherical Earth had been the accepted scientific view for well over a thousand years. Columbus’s contemporaries not only knew that the Earth was round, they knew how big around it was, that having been correctly calculated by Eratosthenes in the third century B.C.

By the fifteenth century they also had a reasonably accurate estimate of the width of Asia. Subtracting the one number from the other they could calculate the distance from where Columbus was starting to where Columbus claimed to be going and correctly conclude that it was much farther than his ships could go before running out of food and water. The scientific ignorance was on the side of Columbus and those who believed him; he was claiming a much smaller circumference for the Earth and a much larger width of Asia, hence a much shorter distance from Spain to the far end of Asia. We will probably never know whether he believed his own numbers or was deliberately misrepresenting the geographical facts in order to get funding for his trip in the hope that he would find land somewhere between Spain and Japan, as in fact he did.

David D. Friedman, “Slandering the Past”, Ideas, 2018-02-14.

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