|Ricardo Montalban as Khan Noonian Singh in the Star Trek movie The Wrath of Khan|
Because I needed a picture of a Khan, and who is the most memorable Khan? Ricardo, of course.
That name reminds me of the Khan Academy. Determined daughter is studying chemistry and she finds the YouTube videos from Khan Academy (warning: autoplay video) very helpful. Are these two related? Not as near as I can tell.
Then there was the Opium Khan character in the novel Angelmaker that I just finished reading. He was a real nasty villain. Evil personified describes him well.
We recently watched the first season of Marco Polo on Netflix, where a young Marco spends a year in Kublai Khan's court. It wasn't the greatest show on Earth, but it had some interesting bits, like using trebuchets against the Chinese, who were armed with primitive guns.