Reader-Give justification for lifetime of art form.

Book- Check out these dates from Report 199928/2B229 of the Department of Environment and Enlightenment

Classical Greek Drama (e.g. Eurypides): 80 years

Elizabethan Drama (e.g. Shakespeare, Jonson):55 years

French Classical Drama (e.g. Corneille, Moliere, Racine): 42 years

Classical Music (e.g. Mozart, Beethoven): 1750-1820: 70 years

Television SitComs:1950-1998 (e.g. Ball, Cosby): 48 years

Science Fiction: 1962-1965 (Star Trek): 3 years