From 1986 to 1992, Westerveld wrote many articles on the origin of the game of draughts for the Dutch magazine ''Het Nieuwe Damspel''. In 1990 he published ''Revista Internacional de Damas'' which was recognized by the [[World Draughts Federations]] as an official representation of Spanish draughts. In 1992 he published his first book on the game of checkers in Spain followed by five more. In 1994, Westerveld published his works on the influence of the [[Queen Isabella I of Castile]] on the game of draughts and chess, explaining the fact that the modern chess game and draughts game was a Spanish invention.<ref name="The Queen Piece of Modern Chess Was Inspired by Queen Isabella">{{cite news||title=The Queen Piece of Modern Chess Was Inspired by Queen Isabella|url=http://historynewsnetwork.org /blog/3910|accessdate=2016-11-19}}</ref> <ref name="La reina Isabel y la dama del ajedrez">{{cite news||title=La reina Isabel y la dama del ajedrez|url=http://news.bbc.co.uk/hi/spanish/misc/newsid_3529000/3529947.stm|accessdate=2016-11-19}}</ref> <ref name="Queen Isabella's checkmate">{{cite news||title=Queen Isabella's checkmate|url=http://www.nzherald.co.nz/world/news/article.cfm?c_id=2& objectid=3552520|accessdate=2016-11-19}}</ref> In 1998, he was appointed as a history member of the [[Federación Española de Ajedrez]], the governing body of chess in [[Spain]]. Since 2005 Westerveld is one of the two official historians of the [[Federation Mondiale de Jeu de Dames]].<ref name="General History">{{cite news||title=General History|url=https://fmjd.org/?p=genhist|accessdate=2016-11-19}}</ref> | From 1986 to 1992, Westerveld wrote many articles on the origin of the game of draughts for the Dutch magazine ''Het Nieuwe Damspel''. In 1990 he published ''Revista Internacional de Damas'' which was recognized by the [[World Draughts Federations]] as an official representation of Spanish draughts. In 1992 he published his first book on the game of checkers in Spain followed by five more. In 1994, Westerveld published his works on the influence of the [[Queen Isabella I of Castile]] on the game of draughts and chess, explaining the fact that the modern chess game and draughts game was a Spanish invention.<ref name="The Queen Piece of Modern Chess Was Inspired by Queen Isabella">{{cite news||title=The Queen Piece of Modern Chess Was Inspired by Queen Isabella|url=http://historynewsnetwork.org /blog/3910|accessdate=2016-11-19}}</ref> <ref name="La reina Isabel y la dama del ajedrez">{{cite news||title=La reina Isabel y la dama del ajedrez|url=http://news.bbc.co.uk/hi/spanish/misc/newsid_3529000/3529947.stm|accessdate=2016-11-19}}</ref> <ref name="Queen Isabella's checkmate">{{cite news||title=Queen Isabella's checkmate|url=http://www.nzherald.co.nz/world/news/article.cfm?c_id=2& objectid=3552520|accessdate=2016-11-19}}</ref> In 1998, he was appointed as a history member of the [[Federación Española de Ajedrez]], the governing body of chess in [[Spain]]. Since 2005 Westerveld is one of the two official historians of the [[Federation Mondiale de Jeu de Dames]].<ref name="General History">{{cite news||title=General History|url=https://fmjd.org/?p=genhist|accessdate=2016-11-19}}</ref> |