1,000-Year-Old Precursor to Stainless Steel Found in Iran, Surprising Archaeologists
![1,000-Year-Old Precursor to Stainless Steel Found in Iran, Surprising Archaeologists 1 oonz1the5lsm8da91tz1](https://i.kinja-img.com/gawker-media/image/upload/s--A9oPD9Yb--/c_fit,fl_progressive,q_80,w_636/oonz1the5lsm8da91tz1.jpg)
Chromium steel, commonly referred to as stainless steel, is thought to be a recent manufacturing innovation, but new evidence suggests ancient Persians stumbled upon an early version of this alloy some 1,000 years ago, in what is a surprise to archaeologists.
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