disputes, the building of stupas and reliquaries, and other notable incidents. An extensive chronicle of the war between the Sinhala King Dutthagamani and Tamil invader, and later king, Elara (861 verses in the Mahavamsa compared with 13 verses in the Dipavamsa) may represent the incorporation of a popular epic from the vernacular tradition. While much of the contents of the Mahavamsa is derived from expansions of the material found in the Dipavamsa, several passages specifically dealing with the Abhayagiri vihara are omitted, suggesting that the Mahavamsa was more specifically associated with the Mahavihara. History Buddhist monks of the Anuradhapura Maha Viharaya maintained chronicles of the island's history starting from the 3rd century BCE. These annals were then combined and compiled into a single document in the 5th century while King Dhatusena was ruling the Anuradhapura Kingdom. It was written based on prior ancient compilations known as the Atthakatha (sometimes Sinhalaatthakatha), which were commentaries written in Sinhala. An earlier document known as the Dipavamsa (4th century CE) "Island Chronicles" is much simpler and contains less information than the Mahavamsa and was probably compiled using the Atthakatha on the Mahavamsa as well. Authorship of the Mahavamsa is attributed to an otherwise unknown monk called Mahānāma by the Mahavamsa-tika. Mahānāma is described as residing in a monastery belonging to general Dighasanda and affiliated with the Mahavihara, but no other reliable biographical information is known. Mahānāma introduces the Mahavamsa with a passage that claims that his intention is to correct repetitions and shortcomings that afflicted the chronicle compiled by the ancients- this may refer either to the Dipavamsa or to the Sinhala Atthakatha. A companion volume, the Culavamsa "Lesser Chronicle", compiled by Sinhala monks, covers the period from the 4th century to the British takeover of Sri Lanka in 1815. The Culavamsa was compiled by a number of authors of different time periods. The combined work sometimes referred to collectively as the Mahavamsa, provides a continuous historical record of over two millennia, and is considered one of the world's longest unbroken historical accounts. It is one of the few documents containing material relating to the Nāga and Yakkha peoples, indigenous inhabitants of Lanka prior to the legendary arrival of Prince Vijaya from Singha Pura of Kalinga. As it often refers to the royal dynasties of India, the Mahavamsa is also valuable for historians who wish to date and relate contemporary royal dynasties in the