"Natural speed please."
At the end of the Zhou Dynasty, the area we now know as China had fallen into a state of fragmentation and conflict. While the Zhou dynasty had ruled for several centuries, several other states, originally feudal domains, tried to carve out their own kingdoms. The state of Qin would eventually emerge the victor and unify all of China under one rule for the first time in history.
I don't know any Chinese, so I probably pronounced Zhou and Qin totally wrong. Most Americans probably don't know the correct pronunciation either, though. :p