Extending from the magnanimous Himalayan Mountains in the north to the Bay of Bengal in the south, the state of West Bengal has been influenced by a plethora of cultures since time immemorial. Bengali, the main language of the state, is spoken by much of the population. In the literary field, eminent scholars like Rabindranath Tagore, Bankim Chandra Chattopadhyay and others have been internationally acclaimed the world over. West Bengal also boasts of world renowned figures like Mother Teresa, Satyajit Ray and many others. Bengalis have long fostered art, literature, music, and drama. The visual arts have, by tradition, been based mainly on clay modeling, terra-cotta work, and decorative painting. Vishva-Bharati University, in Shantiniketan (now part of Bolpur), is a world-famous centre for the study of Indology and international cultural relations.