According to Bhāgavatapurāṇa (Brahmandapurana), Āvartana (Avartana) is one of the upadvīpas (updwipas; peninsular islands) of Jamvidvīpa (Jamvudvipa) — namely, Svarṇaprastha (Swarnaprastha), Ramaṇaka (Ramanaka), Pāñcajanya (Panchajanya) and so on. These peninsular islands were created while the sons of King Sagara digged up four corners of the earth, in order to search for the lost yajñīya aśva (yajniya aswa; the sacrificial horse).