Armenian Opera Theater was created in 1933.
New England Opera Theater was created in 1945.
Chicago Opera Company was created in 1940.
Chicago Opera House was created in 1885.
Chicago Civic Opera was created in 1922.
Chicago Opera Association was created in 1915.
Lyric Opera of Chicago was created in 1929.
Chicago Shakespeare Theater was created in 1974.
Lithuanian Opera Company of Chicago was created in 1956.
Chicago City Opera Company was created in 1935.
Chicago Grand Opera Company was created in 1910.
The Opera House is a type of theater, yes.