The settlement was incorporated as a fifth class city on April 19, 1890.
The settlement was incorporated as a city in 1925.
George Hamilton's settlement was incorporated as a police village in 1833.
But his settlement lived on without him, and in 1803 was incorporated as the town of Gardiner.
The settlement grew from there and was incorporated in 1867.
The next year, on 3 March 1639, the settlement was officially incorporated.
In 1784, the central settlement was incorporated as a city distinct from the town.
On February 14, 1893 an election was held at the school house to decide if the settlement should be incorporated as a village.
German immigration into the area brought more people, and by 1861, the settlement was incorporated as a village.
The settlement wasn't actually incorporated as a village until 1867.