If Disraeli made it famous, why doesn't anyone have any idea when or where he said it? When Twain first used it, he indicated that it was a phrase attributed to Disraeli by some, but in a way that made it sound like Twain knew that not to be true. There is no evidence Disraeli ever said it and its first appearance in history is after Disraeli's death.

This is probably wrong. Quoting from the wikipedia article on this phrase:

  > The phrase derives from the full sentence, "There are three kinds of lies: lies, damned lies, and statistics.";
  > it was popularized in the United States by Mark Twain and others, who mistakenly attributed it to the British prime 
  > minister Benjamin Disraeli. The phrase is not found in any of Disraeli's works and the earliest known appearances were
  > years after his death. The phrase was attributed to an anonymous writer in mid-1891 and later that year to Sir 
  > Charles Dilke, but several others have been listed as originators of the quote, including frequent erroneous 
  > attribution to Twain himself.  

https://en.wikipedia.org/wiki/Lies%2C_damned_lies%2C_and_sta...