Teachers and officials came to his home, but neither of them could say when the objects were made.

The objects will serve for important materials for the study of local geography and environment.

In the Bronze Age, they made copper and bronze, but iron came later, in which was called the Iron Age.

He may have had a hand in helping transport and pulling up the stones.

The biggest stones weigh for 20 tons and came from a place not very far.

This man was buried with two gold earrings which are the oldest gold？（are, gold 不搭配） being ever found in Britain.

Close to his head was two pots, a bow ， arrows for hunting and a small copper knife.

On May 3,2002, archaeologists found a grave of a man dated back to around 2300 B.C.

B. Yan Kaizong ______ his father ______ when he gave the relics to the state.

B.______ now ______ to ______ ______ through trade and cultural links.