Major new work is being done to unearth the ancient Sanxingdui site which belonged to the Shu civilization in southwest China which has since disappeared, reported CGTN today. The first remnants of this civilization were discovered in the 1920s by a farmer ploughing his field in Sichuan province. China did the first scientific digs in the 1930s, but it was not until the 1990s that major work was done to reveal remnants of this civilization. Now they have discovered a major city which could have been the center of the civilization. Some of the remnants are 3,500 years old. They have found artifacts in bronze, gold and ivory. And the Sanxingdui civilization was quite independent from the civilization on the Yellow River which is always considered the source of the Han people. Researchers feel that they have also found indications of a language on some of the items, which, of course, no one can decipher. Many interesting questions are now being raised by these discoveries.