Musicals 101
Musicals 101: History of the Musical Stage: 1900 1910
This site discusses the development of the stage musical from 1900-1910. Includes a section on The Wizard of Oz.
New York Times
New York Times: Crossword Puzzle: Ancient Greek Theatre
An interactive & printable crossword puzzle developed by the New York Times Learning Network. The theme of this puzzle is Ancient Greek Theatre.