Sword of Goujian
A 2,500-year-old sword found still razor-sharp and untarnished — a testament to ancient Chinese metallurgical genius.
The Story
When archaeologists discovered this sword in a waterlogged tomb in Jiangling, Hubei in 1965, they were stunned: after 2,500 years underground, the blade was still razor-sharp and virtually free of corrosion. A test-cut through 20 layers of paper confirmed its edge. The eight-character inscription on the blade reads: 'King of Yue' and 'made this sword for his personal use,' identifying it as the personal weapon of Goujian — the legendary king who endured humiliation, slept on brushwood, and tasted gall to motivate himself before ultimately conquering the rival state of Wu. The blade's incredible preservation is attributed to a chromium-rich oxide layer — a form of anti-corrosion technology that would not be 'reinvented' in the West until the 20th century.
Why It Matters
Demonstrates that ancient Chinese metallurgists had mastered chromium-based anti-corrosion technology 2,000+ years before modern science.
Fun Facts
Still sharp enough to cut paper after 2,500 years
Contains a chromium oxide anti-corrosion layer — technology 're-discovered' in the 1900s
King Goujian's story of perseverance is one of China's most famous legends
The sword was found alongside 20+ other weapons, but only this one was pristine
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