OK I'm officially ready to do the give away NEXT week giving away a total of 200 points leaving me with a spare 400 points for next time :)

Yay! What day?

Explanation:

BRAINLIEST PLEASE!

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

entering that problem on the tube you may come up with an answer