Conversation so far:
What languages did Edward Sapir study?
Edward Sapir's special focus among American languages was in the Athabaskan languages.
What other languages did Edward Sapir study besides the Athabaskan languages among American languages?
Edward Sapir studied Latin, Greek, and French. He also focused on completing coursework in Gothic, Old High German, Old Saxon, Icelandic, Dutch, Swedish, and Danish.

Question: Where did he study?
Self-contained rewrite: Where did Edward Sapir study?