A 2,500-year-old Chinese sword discovered in 1965 remains razor-sharp and pristine today, seemingly defying the natural laws ...
Narrator: Over three and a half thousand years ago ancient China ... Shang period, bronze was the most important metal, weapons, armour and tools were all made from bronze. Sword Maker: My weapon ...
Narrator: Over three and a half thousand years ago ancient China ... Shang period, bronze was the most important metal, weapons, armour and tools were all made from bronze. Sword Maker: My weapon ...