To learn more about the Celts, click the links below
http://ancienthistory.abc-clio.com/Search/Display/575993?terms=celts
http://www.ancient.eu.com/Boudicca/
http://www.britannica.com/EBchecked/topic/78815/Brennus
http://www.britannica.com/EBchecked/topic/97486/Cartimandua
http://www.encyclopedia.com/topic/Vercingetorix.aspx
http://www.localhistories.org/celt.html
http://www.ancient.eu.com/Boudicca/
http://www.britannica.com/EBchecked/topic/78815/Brennus
http://www.britannica.com/EBchecked/topic/97486/Cartimandua
http://www.encyclopedia.com/topic/Vercingetorix.aspx
http://www.localhistories.org/celt.html