• The theme song of the 1939-40 World’s Fair, “Dawn of a New Day,” was written by George and Ira Gershwin, even though George had died in 1937. Ira wrote lyrics to one of George’s unused melodies.

• If you enjoy popping bubble wrap, you’ll want to know about www.virtual-bubblewrap.com, complete with sound effects, where your mouse does the popping.

Katharine Hepburn won four acting Oscars, more than anyone else. Three performers are tied with three acting Oscars. They are Ingrid Bergman, Jack Nicholson and:

A) Meryl Streep

B) Dustin Hoffman

C) Yul Brynner

D) Walter Brennan

Previous answer: The Kellogg-Briand Pact, eventually signed by 62 nations including the U.S., outlawed “war as an instrument of national policy.” (Author’s note: It didn’t work.)