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In page Map:

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Maps not oriented with north at the top:

  • Medieval European T and O maps such as the Hereford Mappa Mundi were centered on Jerusalem with East at the top. Indeed, before the reintroduction of Ptolemy's Geography to Europe around 1400, there was no single convention in the West. Portolan charts, for example, are oriented to the shores they describe.
  • Maps of cities bordering a sea are often conventionally oriented with the sea at the top.[citation needed]
  • Route and channel maps have traditionally been oriented to the road or waterway they describe.[citation needed]