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Georeferencing Historical Placenames and Tracking Changes Over Time
Georeferencing WorkshopHarvard University 21 March 2008
Lex Berman China Historical GIS Project
instance 1: St. Petersburg (Russia) Begin=1703 End=1913
instance 2: Petrograd (Russia) Begin=1914 End=1923
instance 3: Leningrad (Russia) Begin=1924 End=1990
instance 4: St.Petersburg (Russia) Begin=1991
instance 5: St. Petersburg (Florida, USA) Begin=1892
instance 1,4: St. Petersburg (Russia)
instance 5: St. Petersburg (Florida, USA)
before dissolve
after dissolve
Dissolving multiple historical instances of same spelling
Feature Type Crosswalk Based on Controlled Vocabulary
Semantic fragmentation = no feasible constraints on concepts