What reference book went on sale for the first time in 1955?

More Questions:

What is Lipton the world's biggest-selling brand of?

Which country were the 1912 Summer Olympic Games held in?

Live Aid was organized to benefit which starving country?

What two baseball players make up the battery?

In Greek literature, Chronos is the personification of what?

Which very famous mystery novel was written by Gaston Leroux?

Which sea separates Greece from Asia Minor?

What was Lucy’s last name on the TV series "I Love Lucy"?

Who was Tommy Lee Jones" upperclassman roommate at Harvard?

What was John Wayne’s nickname?

What artist performed the song titled "MMMBop"?

In the 1986 movie "Aliens', how many years was Ripley adrift in space?

Who became the monarch after Henry VIII?

Which terrorist group invaded the Munich Olympic Village in 1972?

In the music video "Opposites Attract", what is the name of the cat Paula Abdul dances with?