From Aohige:
Yes, it's like SUPER lead poisoning.. the nation of Flavance (or Flabance), known as the "White Town" used the for everything they made, and it was a beautifully white material that was imported out, supporting the nation's wealth.
The WG had done research a century prior to find out the White Lead was poisonous to people, but kept it hush-hush. WG and the Royalty of Flavance conspired together to keep the people uninformed of the potential danger, and made insane amount of profit.
The White Lead kept reducing the lifespan of the generations for years before they became aware, and the symptom of poisoning all erupted at the same time to all the generation nearing its end of life. The other countries thought it was an infectious disease and decided to lock everyone in the White Town nation, and shot anyone trying to leave.
It was simple lead poisoning, and was not infectious, and the WG knew that but did nothing to stop the slaughters.
The royalty of the nation all fled early, abandoning their people to their deaths.
Eventually the people of the Flavance were all wiped out by human hands, man, woman, children, everyone viciously murdered.
