The legend of the Emerald Buddha is related in number of sources such as "Jinakalamali", "Amarakatabuddharupanidana", and in particular "Ratanabimbavamsa" or "The Chronicle of the Emerald Buddha" written in Pali by Brahmarājapañña in the 15th century. The story is a mix of fact and fables with some variations to the story. According to the legend, the Emerald Buddha was created in 43 BCE by a saint named Nagasena in the city of Pataliputra (today's Patna), India. Nagasena allegedly had the help of Hindu god Vishnu and the demigod Indra, 500 years after Buddha attained Nirvana. He was said to have predicted: