Complex sentence: According to Jain texts, he was born in 599 BCE on the thirteenth day of the rising moon of Chaitra in the Vira Nirvana Samvat calendar.
Split into simpler sentences: According to Jain texts, he was born in 599 BCE. His date of birth is on the thirteenth day of the rising moon of Chaitra in the Vira Nirvana Samvat calendar.