n The title role in the 1947 biopic “The Jolson Story” was portrayed by Larry Parks, but Jolson himself can be seen performing “Swanee” in the film, in a “long shot” of a Broadway stage.

Until the 19th century, each U.S. city set its own clocks based on the sun’s position in the sky. What 19th-century invention made necessary the establishment of “standard” time zones?

A) Electric lights

B) Wristwatches

C) Railroads

D) Peanut butter

Thursday’s answer: James Earl Jones portrayed the adult Alex Haley in the 1979 ABC miniseries “Roots: The Next Generations.”

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