Just right topic

my topic is when is skateboard start

and i found a book in library about the skateboard history: http://library3.ais.edu.vn/cataloging/servlet/presenttitledetailform.do?siteTypeID=-2&siteID=&includeLibrary=true&includeMedia=false&mediaSiteID=&bibID=59090&walkerID=1331010123354

this is some website that i find about skateboarding and some of the famous skateboarder
http://webpath.follettsoftware.com/resource/viewurl?encodedUrl=3bdJfJ-LmeUBaPkQqUrZZLnC9ifCg5yNyqAvhERygA0&version=1&appsignature=Destiny&appversion=10.0.4.2+%28rc4%29
http://webpath.follettsoftware.com/resource/viewurl?encodedUrl=3bdJfJ-LmeUBaPkQqUrZZNR_1ZS2whed9NcYlCO3AoE&version=1&appsignature=Destiny&appversion=10.0.4.2+%28rc4%29
http://webpath.follettsoftware.com/resource/viewurl?encodedUrl=QA3e1ZmfGQTyUhHafxGQj0neOyiFmpNgjz0941VV3-M&version=1&appsignature=Destiny&appversion=10.0.4.2+%28rc4%29