Culture · 6 pages · 12 min

Why a map without a date is unfinished

A map claims a world at a moment, and a missing date leaves that moment unnamed.

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From the opening

A map records coasts, borders, roads, and names as they stood when someone surveyed or compiled them. Without a date, a reader cannot tell whether that standing is the present, a past year, or a quiet mixture of several years. The opening covers situation date versus print date, coasts and borders do move, and diagrams are a different case.

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Inside

  • Situation date versus print date
  • Coasts and borders do move
  • Diagrams are a different case
  • Testing the sheet against a change
  • Where the idea stops applying
  • A distinction worth keeping

Sources

  • Survey dates and map revision notes
  • The difference between publication date and map situation