The Inca had three origin myths. In one, Ticei Viracocha of Colina de las Ventanas in Pacaritambo sent forth his four sons and four daughters to establish a village. Along the way, Sinchi Roca was born to Manco and Ocllo, and Sinchi Roca is the person who finally led them to the valley of Cuzco where they founded their new village. There Manco became their leader and became known as Manco Capac.
In another origin myth, the sun god Inti ordered Manco Capac and Mama Ocllo to emerge from the depths of Lake Titicaca and found the city of Cuzco. They traveled by means of underground caves until reaching Cuzco where they established Hurin Cuzco, or the first dynasty of the Kingdom of Cuzco.
In the last origin myth, an Inca sun god told his wife that he was lonely. She proposed that he create a civilization to worship him and keep him company. He saw this as a wise plan and carried it out. The Inca were born from Lake Cuzco and populated the Andes and worshiped their sun god.
The knowledge of these myths is due to oral tradition, since the Incas did not have writing. There probably did exist a Manco Capac who became the leader of his tribe. The archeological evidence seems to indicate that the Inca were a relatively unimportant tribe until the time of Sinchi Roca, also called Cinchi Roca, who is the first figure in Inca mythology whose existence can be supported historically.