2ตัวบนตรง ๆ งวด 2พฤษภาคม2562
There was a developed civilization in China between the Wei River and the Yellow river during 5000 BC. They had many problems because of the Yellow river as floods came in occasionally. Those floods were able to make the land fertile and the ancient Chinese people got the opportunity to harvest along the river. People also started farming in the Hubei Basin and those people did not have problems with occasional flooding. Because of these floods, people started organizing in order to develop their life.
from: http://ezinearticles.com/?Ancient-China-History&id=7142639
