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sarongsong
2005-Nov-13, 04:38 AM
Bitumen - A History (http://saudiaramcoworld.com/issue/198406/bitumen.-.a.history.htm)
The Sumerians called it esir, the Akkadians called it iddu and in the ancient world - as in the modern - it was a vital and valuable substance: asphalt, the first petroleum product used by man...