Source #4

1. http://www.historyforkids.org/learn/china/art/shang.htm
2. Dr. Karen Carr
3. Associate Professor of History, Portland State University
4. Shang Dynasty- By about 2000 BC, people in China had learned from the people of West Asia how to make bronze out of copper and tin. They began to make many jars and plaques out of bronze that were used for worshipping their gods. Right from the beginning, these were of very high quality. Some people have thought that the Chinese must have been practicing a long time to make such good bronze pieces. These bronze jars and boxes were cast in molds using the lost-wax technique. Usually they were cast in several different pieces and then soldered (SOD-erd) together with melted bronze or tin. Some of them are plain with just a few lines cut (incised) into them. Other jars and goblets have lots of fancy decoration sticking out all over them. Some are abstract designs, others show plants or animals or mythical monsters like dragons. Some show demons, or human faces.Towards the end of the Shang Dynasty, about 1200 BC, people began to write messages on these bronze jars and cups using the earliest Chinese pictograms. It was probably sometime during the Shang Dynasty that nomadic Indo-Europeans brought the potter's wheel to China. The potter's wheel let artists make pots much more quickly, so that they became cheaper and more widely used.
5. I do
6. This source is like other sources that I have found. The person who wrote this also has a very good credential.