Complex sentence: While not considered a canonical religious text, the "Mahavamsa" is an important Buddhist document of the early history of religion in Sri Lanka, beginning near the time of the founder of Buddhism, Siddhartha Gautama.
Split into simpler sentences: While not considered a canonical religious text, the "Mahavamsa" is an important Buddhist document. It covers the early history of religion in Sri Lanka, beginning with the time of the founder of Buddhism, Siddhartha Gautama.