Bengal has one of the most developed literary traditions in Asia. A descent of ancient Sanskrit and Magadhi Prakrit, the Bengali language evolved circa 1000-1200 CE under the Pala Empire and the Sena dynasty. It became an official court language of the Sultanate of Bengal and absorbed influences from Arabic and Persian. Middle Bengali developed secular literature in the 16th and 17th centuries. It was also spoken in Arakan. The Bengali renaissance in Calcutta developed the modern standardized form of the language in the late 19th and early 20th centuries. Rabindranath Tagore became the first Bengali writer to win the Nobel Prize in Literature in 1913, and was also the first non-European Nobel laureate. Kazi Nazrul Islam became known as the Rebel Poet of British India. After the partition of Bengal, a distinct literary culture developed in East Bengal, which later became East Pakistan and Bangladesh.