When I watched the BBC's general excellent documentary Pride & Prejudice: Having a Ball last year, one of the things that caught my negative attention was this rather astonishing assertion at about the 1:07 mark:
"The Savage Dance was a craze back in 1813, taken from a song-and-dance routine in a musical based on Robinson Crusoe."
Let me note first that this assertion was not made by the documentary's dancing master, but by a narrator. That's a good thing, because I can give the narrator a pass on the assumption that she doesn't actually know anything about early nineteenth century dance. It's a shame the BBC let this statement slide in, though, since as far as I can tell it is, shall we say, completely unsupported by any actual evidence. I expect BBC documentaries to have higher standards than Hollywood movies.
Let's take that statement apart.