In 1947, US telephone companies began using what?

More Questions:

What is the name of Canada's national anthem?

What accordion-laden type of dancing is the official state dance of Wisconsin?

What is James Naismith best known for?

What type of race is the Belmont Stakes?

What is the only pasta to eat for good luck on New Years Day, according to Sicilian tradition?

The eggs of what sturgeon are the preferred form of caviar?

According to the nursery rhyme, Winken, Blinken and Nod sailed in a "what"?

What ore is the primary source of Aluminium?

What culinary ingredient is French scientist Hippolyte Mège-Mouriès credited with inventing?

What year did the "ILOVEYOU" virus began infecting computers worldwide?

Which comedian created the character of Maude Frickert?

Which actor played the role of God in the movie "Bruce Almighty"?

What is the name of the prince in Disney's "Sleeping Beauty"?

Carlos Irwin Estévez is best known by what stage name?

What year was the first official soccer game played?