n Author L. Frank Baum is best known for “The Wizard of Oz.” But that book was just the first in a series of 14 Oz books he wrote between 1900 and 1920, the last of which was “Glinda of Oz.”

n Cartoon sailor Popeye first appeared in 1929 as a minor character in the comic strip “Thimble Theatre,” whose original main characters were Olive Oyl and her boyfriend, Ham Gravy.

In the highly publicized “Battle of the Sexes” tennis match in 1973, Billie Jean King defeated Bobby Riggs in straight sets. Where did the match take place?

A) Houston, Texas

B) London, England

C) Sydney, Australia

D) New York, N.Y.

Monday’s answer: The National Civil War Museum in Harrisburg, Pa., (near Gettysburg) presents exhibits that are unbiased to Union or Confederate causes.

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