When was the world's oldest emergency call telephone service introduced?
Correct answer: 30 June 1937

Chris
Wow! only an American could ask that question Sassi. The rest of the world must seem like strange place to you…(and the rest of the world is bigger than America…)

Tom
Sassy, Sassy, It didn't, the UK doesn't use 911. Although they have included 112 for mobiles.
Australia uses 000.
Other countries, I know the Philippines, have adopted 911 from US.
But 911 is not an international standard emergency line. Mostly US.
If you travel it is worth checking.

Sassy
When did it turn into 911?