This illustration depicts the Illinois city of Nauvoo when it was
occupied by the Church of the Latter-Day Saints, or Mormons. The Mormons
came to Illinois in 1832, fleeing persecution in Missouri. By 1842 Nauvoo
had become a city of at least 12,000, the largest in Illinois. Thousands
of other Latter-Day Saints lived nearby. The church erected a massive
temple. Insisting upon controlling local institutions, the Latter-Day
Saints assembled the Nauvoo Legion, a well-trained Mormon army who were provided
cannon by Springfield officials eager to court the bloc-voting sect.
The Mormons' exclusive social and economic organization and clumsy attempts
to influence Illinois politics quickly led to controversy with other
Illinoisans. By 1844 Illinois Governor Thomas Ford had called out the
state militia to quell the growing conflict. In June of that year an
anti-Mormon mob rushed the jail holding the Saints' leader Joseph Smith
and his brother Hyrum and murdered them. Despite the governor's ineffectual
efforts to keep the peace, lawlessness persisted for two years in what
has come to be known as the Mormon War. In 1846 the Mormons quit Illinois
and began their trek to Deseret, the modern Salt Lake Valley of Utah.