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Open Access Publications from the University of California

Claudius Ptolemaeus (Ptolemy): Representation, Understanding, and Mathematical Labeling of the Spherical Earth. CSISS Classics


Claudius Ptolemy helped bring geography to the forefront of scientific thought, his contributions influenced a broad range of disciplines to the importance of accuracy in locational measures and to the need for an equal-area perspective in evaluating spatial relationships among diverse phenomena and in making geographical comparisons.

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