Keywords: The Seven Bridges of Königsberg, Fig. 1.png en Figure 1 from the English translation of Solutio problematis ad geometriam situs pertinentis in The World of Mathematics Volume I It ™s a cleaned up copy of the original drawn by Leonhard Euler 2014-06-11 12 41 55 The World of Mathematics Volume 1 Creator Leonhard Euler PD-Art Uploaded with UploadWizard Leonhard Euler |