The first inhabitants of the area where Chaska sits were Native American Mound builders. Later on, the Dakota nation or the Sioux were the primary settlers in the area. When the Treaty of Traverse de Sioux was ratified in 1851, more settlers moved in as the area became open for exactly that.  The earliest was a man by the name of Thomas Andrew Holmes who in 1851 claimed a 20-acre area as the site for the Chaska town. The name of the city was actually derived from the Dakota tongue and is associated as a name given to a first-born male child.  Town records show a David Fuller purchasing the “Shaska” townsite from Holmes in 1852 and platting was achieved in 1857. The city is known as the 8th best city in the US in 2007 and the 20th best in 2009.