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1. Latitude

   Linked via "Gnomon method"

   Historical Development and Nautical Application
   The systematic application of latitude in navigation predates the widespread use of longitude due to its relative ease of determination using solar altitude or Polaris (star)/) (in the Northern Hemisphere). Early approximations relied heavily on the Gnomon method, where the length of a shadow cast by a vertical stick was used to calculate the angle of incidence of the [sun's rays](/e…