While you taking Myanmar trips, you will see that there are two names of the country, one in Myanmar, and another is Burma. Burma is the Burmese name, used at the beginning of the 12th century, but its origin is still unclear, but historians of Myanmar agreed that the name derived from "Brahmadesh" in Sanskrit, which means "land of Brahma" Hindu god of all things.
In May 1989, the council order restores and national law of Burma renamed "Burma" to "Myanmar" along with the changes in the English names of various parts of the country. For example, the Capital "Rangoon" was renamed to "Yangon". In Burmese, "Myanmar" is the name of the country, while the "Bama" (taken from Burma) is the colloquial name.
However, today many exiled Burmese groups continue to use the name "Burma" because they do not accept the legitimacy of the military government of Myanmar as well as change the name of the country. Some western countries including the United States, Australia, Ireland, and the UK continue to use the name "Burma"; The EU uses both names "Burma" and "Myanmar"; UN uses the name "Myanmar". The use of the name "Burma" is still popular in the United States and the UK. In English, people still use the word "Burmese" as an adjective.