Emerging originally in India, Buddhism quickly spread throughout the Indian sub-continent, moved into southeast Asia, then into Central Asia, on into China, Korea, and Japan. And, as a teaching of Buddha were embraced by the people in very different culture and religious settings, Buddhism itself changed in significant ways, resulting in the enormous teachings and practices among contemporary Buddhists. But, in spite of all the diversity all Buddhist trace their belief and practices, in some sense, back to the awakening of Gautama the Buddha under the Bodhi tree and to the teachings that derive from his experience. We believe that the historical Buddha taught in Māgadhībhāsā. His discourses were compiled together in the very similar language, popularly known as Pāli in modern times.
Pāli is the only Indic language in which we find a complete set of Buddhist canonical literature and much of it can be traced back to first century BCE or before. It is consensus among scholars that due to the efforts of emperor Asoka and his team, the Buddhadhamma was disseminated to the land of Sīhala first and gradually to the other South and South-east countries in coming centuries. As a result, we share certain common fundamental features in terms of culture, doctrine, shrine, architecture, language, and so on with Indian sub-continent and with South and South-east Asian countries. Many pioneering scholars including Venerable H. Saddhatissa has proved the strong connectivity of Pāli based Buddhism particularly with the culture of with Laos, Cambodia, Burma, Thailand, and Srilanka. Although, Pāli is said to be the dead language by some of the modern scholars such as Jules Bloch and Thomas Burrow but despite of its status as dead language, Pāli is still widely studied because many of the early Buddhist scriptures were written in Pāli and its significant role in developing partnership with other diverse culture at large.