Faik the worry isn't from wine the emperor drank (though I think the consensus is he did take a hell of a lot of mercury as medicine believing it'd give immortality). It's the described artistic floor map of China (at the time) with the rivers of liquid mercury suggested as being real by the high mercury readings.
Not sure which party, but I've been getting the same notice in the mail every ~3 days with this message and my voting record listed all the way back to 2016 for the past two weeks. Honestly not sure if it's an attempt to intimidate me to vote a certain way because it sure is going beyond "people will know if you voted" to kind of insinuating they'll know who I vote for. Fail point is I don't know acronyms for political groups so I'm not sure which one they're trying to get me to vote for lol