A simple feature containing the URIs, municipality codes and geometries of municipalities in time. The starting point and end point of each municipality can be determined by combining polygons1909_2009 with another dataset that contains such information.
polygons1909_2009A simple feature with 860 rows and 3 variables:
Universal Resource Identifier (URI) for each municipality instance in time. For example: http://www.yso.fi/onto/sapo/Maalahti(1908-1972)
Municipality code, a unique 3-digit code (001-999) assigned for each municipality that stays the same as long as the municipality exists. For example: "475"
A single list column with geometries