<span>the harvesting season. I think it's march to june. </span>
Actually every single one is correct, A<B<C they all are factors in the decline of Sumer.
The correct answer is <span>the tribute system required non-chinese to acknowledge chinese superiority and their own subordinate place in a chinese-centered world order
Basically, the Chinese people didn't need the rest of the world. They made a decision to say that to every other countries because the other countries needed China while China didn't need other countries. For this reason, Chinese interests always came first in every deal and if Europeans wanted something that was disliked in China they could kiss their wishes goodbye.</span>
When merchants traveled between towns selling goods, they would have items from different places and cultures. The buyers of these merchants would be fascinated with the new items they had never seen before of different cultures, and so they would buy those items and spread them around until everybody knew about and became interested in other cultures. The cycle continued, causing more and more people to appreciate other cultures.
