The Vedas are ancient Hindu texts, constituting the oldest written material of Sanskrit literature and scriptures ever available to Hinduism... The Vedic manuscripts were penned on natural materials including palm leaves and birch bark... The Rigveda is considered to be the most ancient text, probably from about 1900 to 1100 BC. Incidentally, this period marked the Vedic era itself... India's Vedic culture has made immense contribution to several fields of activity and has verily influenced the thinking process of the entire world...