All additions, lots, lands, subdivisions and parcels of ground included within the official municipal map and plat on file at the office of the County Register of Deeds having been by act or ordinance of the City Council or by law duly annexed to or made a part of this city, or by the act, authority, acquiescence, consent, platting and dedication of their respective owners, created either as the original townsite or as additions to the city, are hereby declared to be within the corporate limits of the city. Lawfully constituted additions or changes in said municipal limits shall be indicated upon said map and plat by the City Engineer after such addition or change has been completed in accordance with the ordinances of this city and the laws of the state.
(Prior Code, § 9-101)