When did the British and the Americans start to pronounce "o" (as in "God") differently?
Was it due to changes in America or England?
Here's why I find it curious: American English tends to be more conservative. (One documentary about AE highlighted that during the colonial times, American kids were forced to speak a very "standard" English, for the time, and this might be the reason) However, the pronunciation of "o" seems to be contrary to this general trend.