Well, you have to think about how this could have happened. A lot of cities and countries have all been hit by some sort of disease or natural disaster but do they both have them. I would say false, you have to understand that not only do they go under that they also suffer from economy losses and from political misunderstandings and troubles. So no, those would not be the only two common factors.
In Buddhism the D. Eightfold Path, provides a set of concepts to improve life and reach enlightenment. The Eightfold path is the fourth of the Buddha's four noble truths!
They are considered to be enlightened despots because they still ruled absolutely, but they did implement many things that came from the west and was a part of the enlightenment philosophy. They were like benevolent dictators, they did what they wanted but it was usually a good thing for the people.
I believe it is the Han Dysnasty.
