Sources

  

http://skateboard.about.com/cs/boardscience/a/brief_history.htm

 http://en.wikipedia.org/wiki/Skateboardin

http://teacher.scholastic.com/scholasticnews/indepth/Skateboarding/articles/index.asp?article=history&topic=0

http://www.skatelog.com/skateboarding/skateboarding-history.htm