Bangla Literature dates back to the 7th century at least and it may be divided into three main periods: ancient, medieval, and modern. The different periods may be dated as follows: ancient period from 650-1200, medieval period from 1200-1800, and the modern period from 1800 to the present. The medieval period may again be divided into three periods: early medieval also known as the period of transition from 1200-1350; high medieval from 1350-1700, including the pre-Chaitanya period from 1350-1500 and the Chaitanya period from 1500-1700; and late medieval from 1700-1800. The modern period begins in 1800 and can again be divided into six phases: the era of prose from 1800-1860, the era of development from 1860-1900, the phase of rabindranath tagore (1861-1941) from 1890-1930, the post-Rabindranath phase from 1930 to 1947, the post-partition phase from 1947 to 1970, and the Bangladesh phase from 1971 to the present.