When did the Ku Klux Klan form?

The
original Ku Klux Klan was founded on Christmas Eve, 1865. Established by Confederate veterans,
it was one of many organizations founded with the purpose of defending Southern society (i.e.
white supremacy) from the changes that seemed imminent in the aftermath of the Civil War. Klan
members used terror and violence to intimidate African-Americans, and later...