have been found in other regional languages of the Indian subcontinent. The original text is likely many centuries older. The variations between the manuscripts suggest that this text was compiled and revised by multiple authors. Chronology The composition date of Yoga Yajnavalkya is unclear. Prahlad Divanji, an Indologist and Sanskrit scholar, states that the text was composed between the second century BCE and fourth century CE, because Yoga Upanishads and Hatha Yoga texts contain verses from Yoga Yajnavalkya. Divanji cites Tantra texts, Ayurveda tradition texts, and literature of Advaita Vedanta from the 4th century CE, which mention the Yoga Yajnavalkya, thereafter concluding that the text or some version of the Yoga Yajnavalkya text must have been in existence by the 4th century CE. However, adds Divanji, the text is likely to have been composed after Patanjali's Yogasutra, which itself is variously estimated to have composed sometime between 500 BCE and 400 CE. Divanji premises his dating proposal from the observation that Yoga Yajnavalkya expands on ideas in Patanjali's text, such as its list of Yamas, which includes the Patanjali's five plus five additional ones. A. G. Mohan, an author and yoga teacher, states that the text was likely completed before the 4th century CE. David White, in contrast, suggests the date of composition to be much later, between the 10th and 12th centuries. White states that the 13th-century Dattatreya Yoga-shastra acknowledges Yajnavalkya, and describes its teachings as "supplementary to the eight part practice as taught by Yajnavalkya", which means that the text was already established and accepted by then. Other manuscripts with devotional, "non-mental" and "mental" yoga texts in the Hindu tradition also refer to teachings of the text, suggesting the text originated before many other yoga texts. Ram Shankar Bhattacharya, an Indologist, dates the Pune version of a manuscript of the text to about the 13th or 14th century CE, and notes that this version of the Yoga Yajnavalkya quotes verses from Hatha Yoga texts. He also points out that Gargi is mentioned as the wife of Yajnavalkya in the manuscript. However, no other text affirms that Gargi was the wife of Yajnavalkya; rather, Maitreyi and Katyayani are listed as his two wives, leading to the theory that the Pune manuscript is a corrupted and more modern edition of the original text. According to Dominik Wujastyk, two of its manuscripts – MS Kathmandu NAK 5-696 (now preserved in Nepal),