25,000 - 18,000 BC
Fire hardened points used on the arrows. Flint arrowheads shaped to a point and inserted
into a slot and tied with sinew to the front of the arrow. Feathers were glued and tied
with sinew to the arrow shafts
feathers were being added around that time to aid flight. Flint points bound by sinew on split shafts appeared around 16,000 BC. - See more at: http://outdoorchannel.com/article.aspx?id=17727#sthash.XhD7tUex.dpuf
Flint