It was sarcasm, though I don't believe that ties between China and Europe were sufficiently strong during this time period to warrant the two appearing in the same game. I would much prefer to see China in its own game.
Indirect ties. The Mongols for exemple would be way better represented with China in the game. Or the plague. The Steppes had both influences from China and Europe.
And shortly before the first start date there was even a battle between China and the Abassids.
https://en.wikipedia.org/wiki/Battle_of_Talas
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