Some people say Ayurveda comes from Prehistory. Some ideas in Ayurveda may have been in existence at the time of the Indus Valley civilization, during the Bronze Age in India. During the Vedic period, Ayurveda went through many developments. Outside the tradition of the Vedas, Buddhism and Jainism also shared some ideas with the Ayurvedic texts from ancient India. By around two thousand years ago, Ayurveda had developed some of its ideas for surgery and drugs.