http://www.bbc.co.uk/news/science-environment-11086110
"The scientists unearthed 64,000 year-old "stone points", which they say were probably arrow heads."
"Because of the shape of these "little geometric pieces", Dr Lombard was able to see exactly where they had been impacted and damaged. This showed that they were very likely to have been the tips of projectiles - rather than sharp points on the end of hand-held spears."
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