Minnesota is the 32nd state of the United States, having joined the Union on May 11, 1858. Its name is from the Dakota people's name for the Minnesota River, mini sota, variously translated "smoky-white water" or "sky-tinted water". The state's name is abbreviated MN or Minn. Minnesota is the largest state by area in the Midwestern United States and is in the subregion known as the Upper Midwest. The most significant metropolitan area is known as the Twin Cities, combining the state's most populous cities, Minneapolis and the capital of Saint Paul, along with multiple "rings" of suburbs. More than half of the state's residents live there. The state is a major food producer for the country, and has a number of natural resources that have been greatly exploited in the last two centuries. The USS Minnesota was named in honor of this state, as was the SS Gopher State. Other nicknames for the state include Land of 10,000 Lakes and the North Star State.