Most of the Lhotsampas migrated to the southern plains in search of agricultural land and work in the early 20th century. Bhutan's official language is Dzongkha. Given the geographic isolation of many of Bhutan's highland villages, it is not suprising that a number of different dialects have survived. Bhutan has never had a rigid class system. Social and educational opportunities are not affected by rank or by birth.
Bhutanese women enjoy equal rights with men in every respect.
Bhutanese men wear a gho, a long robe tied around the waist by a small belt called kera. The women's ankle length dress is called a kira, made from beautifully colored and finely woven fabrics with traditional patterns. Necklaces are fashioned from corals, pearls, turqoise, and the precious agate eye stones which the Bhutanese call 'tears of the gods'. Bhutan is the only country in the world to retain the Tantric form of Mahayana Buddhism as its official religion. The Buddhist faith has played and continues to play a fundamental role in the cultural, ethical and sociological development of Bhutan and its people.