The CENTENNIA Historical Atlas

A dynamic, animated guide to a thousand years of history...

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Clockwork Mapping
PO Box 191
Jamestown, RI 02835

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Mac Users

  • Mac users:
    64-bit version, required for macOS Catalina now available.
  • Download here. If you already have a license code, it will work with the 64-bit edition.



  • Centennia: Research Edition ($) extensive GIS versions of Centennia's primary historical database, CRE has been developed for academic research. Institutional licensing fees apply.
  • Centennia: Nations Edition 1789-1939 FREE.
  • German and Greek included.
  • Physical copies now on USB flash (or CD-ROM).
  • Get it here, by download or on USB or CD, or buy on Amazon: USB or CD.
  • Review by Kevin Kelly, founder/editor of WIRED magazine.
  • Frank Reed, Creator of the Centennia Atlas, guest expert on Neil deGrasse Tyson's StarTalk.
  • Like us on Facebook: FB-logo / HistoricalAtlas.