The Library's catalog, cataLION, can lead you to both print and electronic materials on early theatre. Try searches like the ones below:

- theater Greece history
- theater Japan history
- drama history criticism
- theater India
WorldCat is an international catalog of book materials and may provide another option for your research.
Some examples in Gingrich Library:
- The Oxford Encyclopedia of Theatre & Performance (2 volumes) -- REF 792.03 O98K 2003
- World Drama From Aeschylus to Anouilh -- 809.2 N645w
- The Seven Ages of the Theatre -- 792.09 S727s
- The History of the Greek and Roman Theater -- 792.09 B586h2
- The Art of Ancient Greek Theater -- 704.949 H326a 2010
- The Greek Theater and its Drama -- 792 F621g
- Stage Antiquities of the Greeks and Romans and their Influence -- 792 A527s
- Early Arabic Drama -- 892.72 B132e
- "Egypt and the Ancient East" in The History of World Theater -- 792.09 H673
- A History of Russian Theatre -- 792.0947
- Japanese Theatre -- 792.0952 B786j
- The Chinese Drama -- 792.0951 A724c
- Folk Theatre of India -- 792.0954 G231f
- In Search of African Theatre -- 792.096 K36i
- The Drama of the Medieval Church (2 volumes) -- 792.1 Y73d