and economic conditions. More importantly, they held a mirror to the seed of social revolution, which caused a radical re-examination of the ideas of caste, creed and religion. Some of the important writers of Vachana literature include Basavanna, Allama Prabhu and Akka Mahadevi. Emperor Nripatunga Amoghavarsha I of 850 AD recognised that the Sanskrit style of Kannada literature was Margi (formal or written form of language) and Desi (folk or spoken form of language) style was popular and made his people aware of the strength and beauty of their native language Kannada. In 1112 AD, Jain poet Nayasena of Mulugunda, Dharwad district, in his Champu work Dharmamrita (ಧರ್ಮಾಮೃತ), a book on morals, warns writers from mixing Kannada with Sanskrit by comparing it with mixing of clarified butter and oil. He has written it using very limited Sanskrit words which fit with idiomatic Kannada. In 1235 AD, Jain poet Andayya, wrote Kabbigara Kava- ಕಬ್ಬಿಗರ ಕಾವ (Poet's Defender), also called Sobagina Suggi (Harvest of Beauty) or Madana-Vijaya and Kavana-Gella (Cupid's Conquest), a Champu work in pure Kannada using only indigenous (desya) Kannada words and the derived form of Sanskrit words – tadbhavas, without the admixture of Sanskrit words. He succeeded in his challenge and proved wrong those who had advocated that it was impossible to write a work in Kannada without using Sanskrit words. Andayya may be considered as a protector of Kannada poets who were ridiculed by Sanskrit advocates. Thus Kannada is the only Dravidian language which is not only capable of using only native Kannada words and grammar in its literature (like Tamil), but also use Sanskrit grammar and vocabulary (like Telugu, Malayalam, Tulu, etc.) The Champu style of literature of mixing poetry with prose owes its origins to the Kannada language which was later incorporated by poets into Sanskrit and other Indian languages. Middle Kannada During the period between the 15th and 18th centuries, Hinduism had a great influence on Middle Kannada (Naḍugannaḍa- ನಡುಗನ್ನಡ) language and literature. Kumara Vyasa, who wrote the Karṇāṭa Bhārata Kathāman̄jari (ಕರ್ಣಾಟ ಭಾರತ ಕಥಾಮಂಜರಿ), was arguably the most influential Kannada writer of this period. His work, entirely composed in the native Bhamini Shatpadi (hexa-meter), is a sublime adaptation of the first ten books of the Mahabharata. During this period, the Sanskritic influence is present in most abstract, religious, scientific and rhetorical terms. During this period, several Hindi and Marathi words came into Kannada, chiefly relating