Scott R. Robinson, MFA, Theatre Arts Professor at Central Washington University, has put together a great website of costumes through the ages. Learn about Egyptian, Greek, Roman, Byzantine, Gothic, Renaissance, Elizabethan, Puritan, Restoration, Georgian, Romantic, Edwardian, and more fashions from history.
http://www.cwu.edu/~robinsos/ppages/resources/Costume_History/index.htm