In a 1890 Manifesto, the Latter-day Saints (LDS) Church banned polygamy. When Utah applied for statehood again, it was accepted. One of the conditions for granting Utah statehood was that a ban on polygamy be written into the state constitution. This was a condition required of other western states that were admitted into the Union later. Utah became the 45th state admitted to the Union on January 4, 1896 by President Cleveland. Utah is the 13th-largest and the 10th-least-densely populated of the all states.
In 1848 The United States won the Mexican War and in the Treaty of the Guadalupe Hidalgo, Mexico had to give what is now the American West (including Utah) to the United States. Mormon leaders hosted a constitutional convention to write a constitution where they wanted to name the state Deseret (a term used in the book of Mormon to mean “honeybee”). As you can see from the above image the state would have been huge if they had gotten what they wanted.
Of course Congress didn’t want to create a state of this size. Another fact that stopped Utah from becoming a state as previously mentioned was the announcement in 1856 that the LDS authorities were letting some mormons have plural marriages. The rest of the country was shocked. In 1862 after things had settled down a bit, Utah or “Deseret” applied for statehood again. They were denied and congress passed the Morrill Anti-bigamy Act. This Act prohibited polygamy in the territories and disincorporated the LDS church. In 1867 Utah asked Congress to appeal the new act and also asked to be a state again. They were denied again. In 1874 Congress passed the Poland Act which gave authorities more power to prosecute polygamists. Congress then passed the Edmunds Act, outlawing “unlawful cohabitation.” It also banned polygamists from voting, holding public office, or serving on juries. Congress passed yet another act the Edmunds-Tucker Act that confiscated LDS church property and took away the right of Utah women to vote. However, this whole time Utah kept asking for statehood.
In 1894 Congress passed the Enabling Act which step up a step-by-step process for Utah to become a state.