20201204 13433900 1.0 TRUE Incorporation before 1900 This file is a digital geospatial Environmental Systems Research Institute (Esri) ArcGIS polygon feature class of Municipal Incorporation Inventory in Cook County, Illinois. The data is stored as a polygon feature class in an Esri ArcGIS Version 10.2 geodatabase. This Municipal Incorporation Inventory feature class is established as a polygon feature class containing a record for each identifiable municipal incorporation transaction. This feature class is added to the Cook County’s existing enterprise geodatabase schema.