1."10 Ancient Sports That Are Completely Terrifying - Listverse." Listverse. N.p., n.d. Web. 20 Aug. 2014. http://listverse.com/2014/02/06/10-ancient-sports-that-are-completely-terrifying/.
2."13. Celtic Art: Ball Games of the Ancient Celts." The Same Old Game. N.p., n.d. Web. 20 Aug. 2014. http://football-origins.com/13-celtic-art-ball-games-of-the-ancient-celts/.
3."America's First Pastime - Archaeology Magazine Archive." America's First Pastime - Archaeology Magazine Archive. N.p., n.d. Web. 20 Aug. 2014.< http://archive.archaeology.org/0909/abstracts/pastime.html>.
4. "Ancient Egyptians Invented Bowling › News in Science (ABC Science)." Ancient Egyptians Invented Bowling › News in Science (ABC Science). N.p., n.d. Web. 22 Aug. 2014.< http://www.abc.net.au/science/articles/2007/07/27/1989990.htm>.
5. "Ancient Sports: Pankration." Ancient Sports: Pankration. N.p., n.d. Web. 20 Aug. 2014. http://www.perseus.tufts.edu/Olympics/pankration.html.
6. BBC News. BBC, n.d. Web. 12 Aug. 2014. http://www.bbc.co.uk/history/ancient/greeks/greek_olympics_01.shtml.
7. "Bowl like an Egyptian." Go Bowling. N.p., n.d. Web. 01 Sept. 2014. http://www.gobowling.com/News/April-2013/april-bowling-blog-4.
8."Contact Us." Chinese Ancient Football, Bithplace of Football,Olympics. N.p., n.d. Web. 07 Sept. 2014. http://www.absolutechinatours.com/china-travel/chinese-ancient-football-cuju.html.
9. "Gladiator." Ancient History Encyclopedia. N.p., n.d. Web. 22 Aug. 2014.< http://www.ancient.eu/gladiator/>.
10. "History of Jousting." History of Jousting. N.p., n.d. Web. 20 Aug. 2014.< http://www.lordsandladies.org/history-of-jousting.htm>.
11. "Maya Ballgame, William P. Palmer III Collection." Maya Ballgame, William P. Palmer III Collection. N.p., n.d. Web. 20 Aug. 2014.< http://library.umaine.edu/hudson/palmer/Maya/ballgame.asp>.
12. "Mexico Revives Ancient Games - USATODAY.com." Mexico Revives Ancient Games - USATODAY.com. N.p., n.d. Web. 20 Aug. 2014. http://usatoday30.usatoday.com/news/world/2010-03-28-mexico-games_N.htm.
13. "Summary." The Sport of Archery. N.p., n.d. Web. 20 Aug. 2014.< http://www.cultural-china.com/chinaWH/features/shejian/>.
14. "The Extraordinarily Brutal Extreme Sports of Ancient History : DNews." DNews. N.p., n.d. Web. 12 Aug. 2014. <http://news.discovery.com/adventure/extreme-sports/extreme-sports-ancient-history.htm
15. "WHO INVENTED LACROSSE THE INDIAN HISTORY OF BAGGATAWAY." WHO INVENTED LACROSSE THE INDIAN HISTORY OF BAGGATAWAY. N.p., n.d. Web. 20 Aug. 2014.< http://www.simplylacrosse.com/who-invented-lacrosse.html>.
16. "The Week in Pictures | March 19-25, 2012." Framework RSS. N.p., n.d. Web. 20 Aug. 2014. http://framework.latimes.com/2012/03/23/the-week-in-pictures-76/#/0.
17. "The World of Chinese." The World of Chinese. N.p., n.d. Web. 20 Aug. 2014. <http://www.theworldofchinese.com/2013/08/sport-in-ancient-china/>.
18. "Venationes." Venatio and. N.p., n.d. Web. 22 Aug. 2014.http://penelope.uchicago.edu/~grout/encyclopaedia_romana/gladiators/venationes.html.