It's American English a dialect of British English

John   Thu Jun 17, 2010 10:37 pm GMT
Does american english has deviated much from british english?
K   Fri Jun 18, 2010 12:03 am GMT
Has american english deviated much from british english?

No, because American English didn't come form british english. Both came from Old English.
Jeep   Fri Jun 18, 2010 12:16 am GMT
Technically, Old English was a form of British English, but both American English and Modern British English came from Old English, American English didn't come from Modern British English.