How has the nature and technology of warfare evolved,from earliest times to 1500CE?

Answer 1

http://www.historyworld.net/timesearch/default.asp?conid=static_timeline&timelineid=411&page=1&keywords=Weapons%20timeline

http://www.newscientist.com/article/dn17423-timeline-weapons-technology.html

Answer 2

Read widely and take good notes.

http://www.google.com/search?q=timeline+technology+of+warfare&aq=f&oq=timeline+technology+of+warfare&aqs=chrome.0.57j0.10110j0&sourceid=chrome&ie=UTF-8#sclient=psy-ab&q=timeline+nature+of+warfare&oq=timeline+nature+of+warfare&gs_l=serp.3..0i8i30.32820.33541.0.33756.6.6.0.0.0.2.217.882.0j5j1.6.0...0.0...1c.1.8.psy-ab.Y9ZIpqUVsoQ&pbx=1&bav=on.2,or.r_cp.r_qf.&bvm=bv.44770516,d.b2I&fp=1fa1ca819eb382cf&biw=1440&bih=711

http://www.google.com/search?q=timeline+technology+of+warfare&aq=f&oq=timeline+technology+of+warfare&aqs=chrome.0.57j0.10110j0&sourceid=chrome&ie=UTF-8