Joseph Smith set up the Kingdom of God in 1839 here after the Church  of the Latter Day Saints were forced out of Missouri.

Jack Crane

The newly-rebuilt Nauvoo LDS Temple

Nauvoo (/ˈnɔːvuː/; etymology: Hebrew: נָאווּ, Modern Navu Tiberian Nâwû ; “to be beautiful”) is a small city in Hancock County, Illinois, United States, on the Mississippi River near Fort Madison, Iowa. The population of Nauvoo was 1,149 at the 2010 census. Nauvoo attracts visitors for its historic importance and its religious significance to members of several groups: The Church of Jesus Christ of Latter-day Saints (LDS Church); the Community of Christ, formerly the Reorganized Church of Jesus Christ of Latter Day Saints (RLDS); other groups stemming from the Latter Day Saint movement; and the Icarians. The city and its immediate surrounding area are listed on the National Register of Historic Places as the Nauvoo Historic District.

• http://en.wikipedia.org/wiki/Nauvoo, Illinois
• Krakauer, J., 2003, Under the Banner of Heaven: A Story of Violent Faith: First Anchor Books, New York, 399p.