Oldest Stone-Tipped Spear Points (3 of 3) (IMAGE) University of Toronto Caption This is a mounted crossbow used for spearing experiments in a University of Toronto-led study that showed that ~500,000-year-old points from Kathu Pan 1 were used as hafted spear tips. Credit Benjamin Schoville Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.