Three years ago, researchers excavated a vast Celtic necropolis in central France. It was filled with ancient metal artifacts ...

A 2,500-year-old Chinese sword discovered in 1965 remains razor-sharp and pristine today, seemingly defying the natural laws of decay that typically ravage ancient bronze weapons. The Sword of ...

A precise pottery-matrix casting technology appeared in ancient China more than 2,500 years ago. The thin-walled concentric circles at the tip of the sword with extremely short distance between ...