Albrecht Duerer first described the epitrochoid in 1525. Duerer mentioned the curve in his book, "Instruction in Measurement with Compass and Straight Edge." He called the curve 'spider lines' because he thought the curve resembled an arachnid. In his work with gear teeth, Ole Roemer studied the epitrochoid in 1674. Many other mathematicians have studied the curve, including Leibniz, Newton, La Hire, Desargues, and L'Hopital. |

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