I believe that most of us must have this experience that when we look up a word in a dictionary we'll find the word "BrE' or "AmE" marked behind the very word. "BrE" here means British English (herein called BrE) while AmE means American English (herein called AmE). So I can say that AmE has been more and more popular throughout the English--speaking countries, especially among the young people. To a certain extend it has become more common than BrE.

Then how does it come into being? I think the reason is various. To get a general idea of it let us go back to American past.

I think the formation of AmE can be traced back to 17th century., when the Englishmen began to establish colonial land. In the late 15th century Christopher Columbus, an Italian navigator, believed that by sailing west from...