Understanding the Missouri Mormon War of 1838 and Its Lasting Impact on US History
- Aidan Ingram

- Sep 19
- 3 min read
The Missouri Mormon War of 1838 is an essential part of American history that often does not receive the attention it deserves. This conflict stemmed from a mix of religious intolerance, competition for resources, and social tensions between the Latter-day Saints (Mormons) and non-Mormon residents in Missouri. The war led to the notorious Mormon Extermination Act, which not only affected thousands of Mormons but also significantly influenced American society. In this post, we will examine the events of the Missouri Mormon War, the implications of the Extermination Act, and its repeal in 1976.
Background of the Missouri Mormon War
The roots of the Missouri Mormon War date back to the early 1830s when Mormons first arrived in Missouri. The Latter-day Saints, under Joseph Smith's leadership, were in search of a place to practice their faith without fear. They initially settled in Jackson County, where their growing population and unique beliefs sparked tensions with locals.
By 1838, these tensions turned violent. Non-Mormon residents perceived Mormons as threats to their way of life, leading to numerous clashes. For example, in late 1838, a skirmish known as the Battle of Crooked River saw 20 Mormons and non-Mormons engage in an armed conflict, escalating hostility. Moreover, a group of Mormons called the Danites retaliated against non-Mormon threats, which further intensified the violence. The situation was dire enough that martial law was declared in the region.
The Mormon Extermination Act
In response to the escalating violence, Missouri Governor Lilburn W. Boggs issued the Extermination Order on October 27, 1838. This shocking decree stated that Mormons should be "exterminated or driven from the state." As a result, the order legitimized violent actions against a religious group and set a worrying precedent for the treatment of minorities in America.
After the Extermination Order was issued, Mormons faced significant violence, resulting in the loss of homes, property, and even lives. For instance, reports indicate that as many as 6,000 Mormons were driven from their land. Many resorted to fleeing the state entirely, seeking safety in neighboring areas. The order remained officially in effect for over a century, casting a long shadow over the relationship between Mormons and Missouri.

The Aftermath of the War
After the Missouri Mormon War, Mormons ultimately settled in Utah, where they established a vibrant community. However, the scars of the conflict remained. The Extermination Order was not wiped from the books until 1976—a staggering 138 years later. This long delay underscores the ongoing ramifications of the war for both the Mormon community and the wider American society.
Furthermore, the war raised crucial questions about religious freedom in the United States. The treatment of Mormons highlighted the challenges that minority religious groups often face. According to a study by the Pew Research Center, over 30% of Americans still express negativity towards non-mainstream religious communities. This statistic shows that the struggles experienced by Mormons in the past continue to resonate today.
The Repeal of the Extermination Act
The repeal of the Extermination Order in 1976 marked a vital turning point in American history. This action was more than just a legal formality; it signified a recognition of the wrongs faced by the Mormon community. It also reflected changing attitudes towards minority groups, linking closely with the broader civil rights movements of the time.
In the years that followed the repeal, initiatives emerged to foster positive relations between the Mormon community and the state of Missouri. Notable efforts included establishing historical sites dedicated to the history of Mormons and launching educational programs aimed at promoting understanding of this often-overlooked chapter of American history.

Lasting Impact on US History
The Missouri Mormon War and the Extermination Order have had a profound and lasting impact on American history. These events serve as stark reminders of the consequences of religious intolerance and the vital need to protect minority rights. The conflict of 1838 has also shaped how religious groups engage with government and law enforcement in the present day.
The legacy of this war contributes to discussions about civil rights, religious freedom, and the ways in which society interacts with different belief systems. Such lessons remain crucial as the U.S. continues to grapple with issues of religious and social justice today.
Reflecting on Missouri's Past
The Missouri Mormon War of 1838 highlights the challenges faced by minority religious communities within the United States. The Extermination Order's eventual repeal in 1976 emphasizes the continued fight for religious freedom and acceptance in a diverse society. Recognizing the injustices of the past is essential for building a more inclusive future.
As we reflect on this significant historical episode, it becomes clear that the legacy of the Missouri Mormon War is still relevant today. Protecting the rights of all individuals, regardless of their beliefs, is vital for fostering a society that values diversity and understanding among its citizens.







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