Clayton Meeker Hamilton, The Theory of the Theatre, and Other Principles of Dramatic Criticism
“ While the theatres had been closed, Davenant had used scenery in his operas, to keep them out of the forbidden pale of professional plays; and now in 1660, when he came forth as a regular theatre manager, he continued to use scenery, and introduced it into the production of comedies and tragedies. But the use of scenery was not the only innovation that carried the Restoration theatre far beyond its Elizabethan prototype. Play-houses were now regularly roofed; and the stage was artificially lighted by lamps. The shifting of scenery demanded the use of a curtain ”
