WASHINGTON — It has been drilled into our heads since childhood: “Dial 911 for emergencies!” But why is that the number for emergencies in the United States?
You have to go back to the early stages of telephone use.
The 20th century started out with telegraphs and ended with cellphones. The real transition came in the middle of the century. By the 1950s, roughly two-thirds of the homes in the U.S. had a telephone… READ MORE
