A number of tribes occupy Madhya Pradesh, including the Bhil, Baiga, Gon, Korku, Kamar, Kol, and Maria. Many of the tribal traditions are still vital and strong, although they have been exposed to outside cultural influences. A great deal of tribal mythology and folklore is also preserved; e.g., the Gon bards still sing of the legendary deeds of Ling-pen, the mythical originator of the tribe. All tribes retain myths and legends regarding their origins, and they have songs for the ceremonies of birth and marriage, together with folktales, riddles, and proverbs illustrating their cultural heritage.