Answer the following question: What key details about david j. peterson can be extracted from the following bio? Bio: david joshua peterson -lrb- born january 20 , 1981 -rrb- is an american writer and language creator . studying at university of california , berkeley from 1999 to 2003 , he received ba degrees in english and in linguistics . he received an ma in linguistics from university of california , san diego -lrb- 2003 -- 06 -rrb- . according to an interview given to the publication '' conlangs monthly '' , he had his first contact with constructed languages while still in berkeley , after attending an esperanto class in 2000 . peterson is best known for creating the dothraki and valyrian languages for the hbo series '' game of thrones '' -lrb- since 2009 -rrb- and the castithan , irathient and omec languages for syfy 's '' defiance '' -lrb- since 2011 -rrb- , but has been creating languages since 2000 . he also created the language used by the dark elves in the movie '' '' . in 2007 , he co-founded the language creation society , with nine other language creators and served as its president -lrb- 2012 -- 2014 -rrb- . when creating the two full and two smaller languages for '' defiance '' , peterson also developed a number system .
Answer:
- spouse is erin peterson- name is david j. peterson- nationality is american- birth place is long beach , california- occupation is writer , language creator