The Zhōu dynasty was a Chinese dynasty that ruled between about 1122 a. C. and 249 a. C. It is the third Chinese dynasty in traditional history, and the second, after the Shang dynasty, of which there is evidence by written sources of its time.
The Zhōu era can be divided into two distinct periods: The western zhou until 771 a. C., who ruled a strong and centralized state from the capitals of Hào and Fēng; and the Eastern Zhōu, between 771 a. C. and 256 a. C., which maintained a purely symbolic or nominal power since Chéngzhōu's court. This second stage, in which the symbolic unity of the kingdom coincided with the existence of multiple independent de facto states, is traditionally subdivided into two periods: the Spring and Autumn period and the Warring States period.
Basically, the Zhou Dynasty separated into two periods West Zhou (1046-771 BCE) and East Zhou (770-256 BCE). <span>The Zhou court extended its power over the eastern plain by granting authority to members of the royal family and in some cases to favored adherents, who established walled forts supported by garrison troops among the original habitants of the east. </span><span>By 700 BCE, the state of Qin in the west, Jin in the north, Qi in the east and Chu in the south were the main centers of power in China. </span> (credits for wording: <em>ancient.eu/Zhou_Dynasty</em>)
Answer: 9 of 13 states had to approve of or ratify a law under the articles of confederation in order for that law to be passed the national government can't obtain any soldiers within the articles of confederation.
Social epidemiology is a branch of epidemiology that focuses particularly on the effects of social-structural factors on states of health. Social epidemiology assumes that the distribution of advantages and disadvantages in a society reflects the distribution of health and disease.
