The Spear

 http://en.wikipedia.org/wiki/File:A_spear_and_a_series_of_javelins..png

 

 

The spear was invented about 400.000 years ago, that people that live at that time used it to hunt. They made the spear of wood, a Sharp stone and some lether. After many years the spear was also used as a weapon, at that point the spear had changed alot. It was now made of steal, and a much better Sharp metal top.