The Theravāda School of Sri Lanka, Burma, and Thailand is descended from the Sthaviravādin and (more specifically) the Vibhajjavāda School. It underwent two more changes of name. In the Indian accounts it is sometimes called the "Tāmraparnīya" (translation: Sri Lankan lineage), but there is no indication that this referred to any change in doctrine or scripture, while it is very obvious that it refers to geographical location. At some point prior to the "Dipavamsa" (4th century) the name was changed to "Theravāda", probably to reemphasize the relationship to the original "Sthaviravāda", which is the Sanskrit version of the Pāli term "Theravāda".