<prompt> Translate the following text to EnglishKulingana na rekodi za zamani za Japani, Kojiki rekodi ya mambo ya kale na Nihon-shoki rekodi ya Japani, visiwa vya Japani vilitokana na ndoa kati ya mungu Izanagi na dada yake Izanami.  <response>: According to the earliest official accounts, the eighth-century Kojiki Record of Ancient Matters and Nihon-shoki Chronicles of Japan , the islands of Japan were born of a marriage between the god Izanagi and his sister Izanami. 