The first major Hindu reference to Sri Lanka is found in the great Hindu epic, the Ramayana. The Ramayana tells that Sri Lanka was ruled by Yaksha king Kubera. The throne of Lanka was usurped by his half-brother Ravana. Ravana was the main villain in the Ramayana and was killed by Rama the avatar of Vishnu. The Ramayana also mentions a bridge between India and Sri Lanka, known as Rama's Bridge, constructed with rocks by Rama with the help of Hanuman and others. Many believers view the sand bar islands connecting Sri Lanka to India as the remains of the bridge as seen in satellite images. Archeological evidence is also found to support worship of Lord Siva in parts of Sri Lanka, from pre-historic times, prior to the arrival of Prince Vijaya. Even Ravana was a devout follower of Lord Siva.