He taught undergraduate linguistics courses at the University of California , Santa Barbara , from 1975 to 1978 , before taking a post doctoral fellowship at the Smithsonian in Washington , D.C. , in 1978 .
He taught college linguistics courses at the University of California , Santa Barbara , from 1975 to 1978 . After that he took a post doctoral fellowship at the Smithsonian in Washington , D.C. , in 1978 .