A spear point found in a central Ohio field (USA) by a farmer has been identified by archeologists as being used by hunters to kill mastodons about 15,000 years ago. Don Johnson of Heath found the Clovis point about four years ago while on a walk. Brad Lepper, an archaeologist with the Ohio Historical Society, says the point is one of the only remaining types of evidence of the Clovis Paleo-Indians. The group, named for their weapons, used the points for about 500 years. Experts say the point is made of Coshocton flint, a grade of stone used for weapons and tools.

Source: Associated Press, Ohio.com (11 December 2007)