The practice of yoga has been thought to date back to pre-vedic Indian traditions; possibly in the Indus valley civilization around 3000 BCE. Yoga is mentioned in the Rigveda,[note 1] and also referenced in the Upanishads,[8][9] . Although, yoga most likely developed as a systematic study around the 5th and 6th centuries BCE, in ancient India’s ascetic and śramaṇa movements