This Ordinance shall be known as the "Zoning Ordinance of Russellville, Alabama," and the map herein referred to as the Zoning Map of Russellville and further identified by the signature of the Mayor of Russellville, and attested by the City Clerk. The Zoning Map of Russellville as last amended prior to the date adoption of this Ordinance, and all explanatory matter thereon are hereby adopted and made a part of this Ordinance. Such map shall be filed in the office of the City Clerk and shall show thereon the date of adoption of this Ordinance.