Politics may have caused the Common Council to officially decertify Mangin's plan for the future expansion of the city, but the episode nonetheless was a step forward in the development of the city's future. In the "warning label" the Council caused to have placed on copies of Mangin's map was the statement that expansion of the city, such as shown on the map, was "subject to such future arrangements as the Corporation may deem best calculated to promote the health, introduce regularity, and conduce to the convenience of the City." Here the Council was showing its willingness to consider actively planning for how the city would develop.