BBC News, 11/22/2012
Mexican President Felipe Calderon has sent a bill to congress to change the official name of the country. The current name, the United States of Mexico, was adopted in 1824 and was intended to emulate its northern neighbour.
President Calderon wants to change it to just Mexico, as the country is known the world over. Mr Calderon, who leaves office on 1 December, said Mexico no longer needed to copy any foreign power.
Mexico Institute 
The Official name is actually “United Mexican States,” not United States of Mexico as reported in this item.
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