Dakota War of 1862: The largest mass-hanging in U.S. history takes place in Mankato, Minnesota, where 38 Native American prisoners are hanged.

The Dakota War of 1862, also known as the U.S.-Dakota War of 1862, the Sioux Uprising, the Dakota Uprising, the Sioux Outbreak of 1862, the Dakota Conflict, or Little Crow's War, was an armed conflict between the United States and several eastern bands of Dakota collectively known as the Santee…