Which secret society aimed to restore white supremacy through violence and intimidation?

The Ku Klux Klan was a secret society that emerged in the United States during the Reconstruction era, primarily in the South, with a goal to restore white supremacy following the Civil War. Founded in 1865, the Klan used violence, intimidation, and terroristic tactics to oppress African Americans and to undermine the political and social advancements made during that time, particularly those granted by the Reconstruction Amendments.

The Klan's activities included lynching, burning of homes, and other forms of violence aimed at instilling fear in African Americans and those who supported them. This organization sought to maintain white dominance in social, economic, and political spheres, vehemently opposing the integration and advancement of Black citizens.

Other options, while significant in their own contexts, do not share the same violent and oppressive goals associated with the restoration of white supremacy. For instance, the Knights of Labor was a labor organization focused on workers' rights, and the Know-Nothing Party was primarily focused on anti-immigrant sentiments, particularly against Irish and Catholic immigrants. Southern Democrats, while they may have upheld certain policies that favored white supremacy, were a formal political party rather than a secret society engaging in organized violence. Thus, the Ku Klux Klan is distinctly