1890 Mormons renounce polygamy
It’s amazing how many heretical groups start off with changes in sexual behaviour among their tenets: the nudism of the Adamites, the antinomianism of the Ranters and the multiple wives of Islam and the Church of Jesus Christ of Latter Days Saints. With the exception of Islam, it usually ends, or ends badly. In 1890, under pressure from the U.S. government and eager for Utah statehood, the LDS Church forbade future multiple wife taking. Existing polygamous unions were left unaffected and covert evasion of the decree continues to this day among some sects.
1957 Little Rock Schools integrated by the 101st Airborne
Arkansas Governor Orval Faubus opposed integration of public schools and ordered his state’s National Guard to prevent black students from entering Little Rock Central High School. President Dwight Eisenhower countered by sending in the paratroopers. Though admitted, the first nine black students were subject to shameful verbal and physical abuse by townsfolk and their fellow students.