Contrary to common assumption, Saint Paul was not Minnesota's first capital. The honor belongs to St. Peter (originally called "Rock Bend"), which served as the territorial capital from 1849 until 1851.
In 1849, the Minnesota Territory was organized, and St. Peter was designated capital. However, the territorial legislature met there only briefly. In 1851, the capital was moved to Saint Paul due to its better transportation access (Mississippi River landing), growing population, and commercial importance. When Minnesota achieved statehood in 1858, Saint Paul remained the capital.
Today, St. Peter is a small city (~12,000) known for Gustavus Adolphus College; Saint Paul is the state's second-largest city (~310,000) and government center.