Bangladesh contains greater biodiversity than that of many countries taken together. Indeed few countries in the world can match its rich and varied flora and fauna which are not only aunique biological phenomenon but are also a great natural resource of the country.
Bangladeshis are historically descendants of various races and nationalities. An Austro-Asian race first inhabited this region followed by Dravidians and Aryans. There was also an influx of the Mongolians from Tibet and Mayanmar. The Arab Muslims started coming here in the early ninth century AD. Persians, Armenians, Turks, Afghans and lastly the Mughals came in quick succession.
