"100,000-year old knife discovered in Iran "

Make that "stone tool." Calling a stone tool evidence of a "civilization" seems a little... um.... hyperbolic.

Six Iranian archeologists in cooperation with nine Korean archeologists undertook a discovery project in the northern province of Iran around 10 days ago.

The archeologists could unearth a stone tool comparable to a knife made of stone. The experts estimated the stone knife must date back at least 100 thousand years.

According expert finding a knife in an archeological site is a sign of existence of a civilization in that area.

The archeologists are to continue the task till August 16 in the ancient cities of Roudbar, Roudsar and Siahkal, IRINN reported.

Teeth of Homo erectus have been found in that area of Iran before.