Myanmar (formerly Burma) is a Southeast Asian nation of more than 100 ethnic groups, bordering India, Bangladesh, China, Laos and Thailand.   In 1989 the country’s official English name, which it had held since 1885, was changed from the Union of Burma to the Union of Myanmar; in the Burmese language the country has been known as Myanma (or, more precisely, Mranma Prañ) since the 13th century. The English name of the city that served as the country’s capital from 1948 to 2006, Rangoon, also was dropped in 1989 in favour of the common Burmese name, Yangon. 

Although Myanmar has no official religion, nearly nine-tenths of the population follows Theravada Buddhism. The vast majority of Burmans and Shan are Buddhist. There is, however, a significant Protestant Christian minority, concentrated primarily among the Karen, Kachin, and Chin communities. Many of the other hill peoples practice local religions, and even those who adhere to world religions typically incorporate local elements to some degree. Muslims, mostly Burman, and Hindus are among the smallest religious minorities.

Source:  Myanmar | History, Map, Flag, Population, Capital, Language, & Facts | Britannica