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You searched for: “prime meridian”
Results 1-10 of 25 sorted by date (ascending)
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....C., to replace Greenwich, England, as America’s prime meridian ([Washington]
...for building a national astronomical observatory and establishing an American prime meridian in
astronomy; and calculations of prime meridian [index entry]  ...England; and prime meridian [...
astronomy; and calculations of prime meridian [index entry]  ...England; and prime meridian [...
astronomy; and calculations of prime meridian [index entry]  ...England; and prime meridian [...
astronomy; and calculations of prime meridian [index entry]  ...; and prime meridian [...
astronomy; and calculations of prime meridian [index entry]  ...England; and prime meridian [...
Greenwich Observatory, England; and prime meridian [index entry]  ...of prime meridian...
astronomy; and calculations of prime meridian [index entry]  ...England; and prime meridian [...
Greenwich Observatory, England; and prime meridian [index entry]