Well the speak Chinese which is a language, and religion they are mostly Buddhist.
Political and social structures
They believe state power should be controlled by the people and not the government itself.
Them they don't have parties against each other they all team up.
there electric vehicles can make it up to 500 miles on one charge and they have way better wind powering plants.
fall and decline of yuan dynasty
it was caused by heavy taxing and a thing called a four class system.