Klu klux klan (two paragraphs)

The Ku Klux Klan, is a hate organizations that employed terror in pursuit of their white supremacist agenda. One group was founded immediately after the Civil War and lasted until the 1870s. The other began in 1915 and has continued to the present.

Historically, the first Klan used terrorism - both physical assault and murder - against politically active blacks and their allies in the South in the late 1860s, until it was suppressed around 1872. All three movements have called for the "purification" of America