readysetresearch: Theatre Studies: Theatre History / Playwrights

Theatre History

American Theatre in the Great Depression
DPLA
Major Modern Plays
TheatrePro
Online Guide to the History of Theater
Theatre Seat Store. A good, brief, overview!
Theatre Database
TheatreHistory.com
Great place to start!
Theatre Links: History of Theatre
Theatre Links. Link for each of these: Greek Drama, Caroline Drama, Jacobean Drama, Golden Age of Spain, Roman Drama, 18th Century Drama, Medieval Drama, Restoration Drama, Elizabethan Drama, 20th Century Drama