The Zhou government was weak central. Its power extended by almost all China, but the great extension of the zone and the rudimentary communications they made impossible the direct control of the Zhou, for this they delegated vasallos that gorbernadan each a city and its surroundings, little by little they acquired power until many they rebelled and with foreign aid expelled the Zhou from their capital. They went out and settled in the east but they did not have the same authority and many vassal states were stronger than them.