Wis. Stat. § 62.02: Repeal of special charters.

All special charters for cities of the 2nd, 3rd and 4th classes are hereby repealed and such cities are hereby incorporated under this subchapter. The city clerk shall forthwith certify the boundaries of such city to the secretary of administration, who shall file the same and issue to such city a certificate of incorporation as of the date when this subchapter became effective, and record the same.