Thank you, but I’m also familiar with the various websites on Klan (and Civil War) history and even they don’t necessarily state the year as 1865...such as..... 1866 The Ku Klux Klan is founded: (https://www.thoughtco.com/the-ku-klux-klan-history-721444).
Now that you have educated me, I have no other reason to converse with you so have a good night. :-)