The Village is hereby divided into zones or districts, as shown on the Official Zoning Map titled "Zoning Map for the Village of Cooperstown," which, together with all explanatory matter thereon, is hereby adopted by reference and declared to be a part of this chapter.[1] The Official Zoning Map shall be identified by the signature of the Mayor of the Village attested by the Village Clerk, and bearing the Seal of the Village under the following words: "This is to certify that this is the Official Zoning Map referred to in § 300-4A of the Zoning Law of the Village of Cooperstown, New York," together with the date of the adoption of this chapter.