The Supreme Personality of Godhead incarnated Himself as Sri Rama, accepting the sonhood of His pure devotee Maharaja Dasharath, the King of Ayodhya. Lord Rama descended along with His plenary portions, and all of them appeared as His younger brothers. In the month of Caitra on the ninth day of the growing moon in the Treta-yuga, the Lord appeared, as usual, to establish the principles of religion and to annihilate the disturbing elements.
When He was just a young boy, He helped the great sage Vishvamitra by killing Subahu and striking Maricha, the she-demon, who was disturbing the sages in their daily discharge of duties. The brahmanas and kshatriya are meant to cooperate for the welfare of the mass of people. The brahmana sages endeavor to enlighten the people by perfect knowledge, and the kshatriya are meant for their protection.
Lord Ramacandra is the ideal king for maintaining and protecting the highest culture of humanity, known as brahmaÃ«ya-dharma. The Lord is specifically the protector of the cows and the brahmanas, and hence He enhances the prosperity of the world. He rewarded the administrative demigods by effective weapons to conquer the demons through the agency of Vishvamitra. He was present in the bow sacrifice of King Janaka, and by breaking the invincible bow of Shiva, He married Sitadevi, daughter of Maharaja Janaka.
After His marriage He accepted exile in the forest for fourteen years by the order of His father, Maharaja Dasharath. To help the administration of the demigods, He killed fourteen thousand demons, and by the intrigues of the demons, His wife, Sitadevi, was kidnapped by Ravana. He made friendship with Sugriva, who was helped by the Lord to kill Vali, brother of Sugriva. By the help of Lord Rama, Sugriva became the king of the Vanaras (a race of gorillas). The Lord built a floating bridge of stones on the Indian Ocean and reached Lanka, the kingdom of Ravana, who had kidnapped Sita. Later on Ravana was killed by Him, and Ravana's brother Vibhishan was installed on the throne of Lanka. Vibhishan was one of the brothers of Ravana, a demon, but Lord Rama made him immortal by His blessings. On the expiry of fourteen years, after settling the affairs at Lanka, the Lord came back to His kingdom, Ayodhya, by flower plane. He instructed His brother Shatrughna to attack Lavnasura, who reigned at Mathura, and the demon was killed.
He performed ten Ashwamedha sacrifices, and later on He disappeared while taking a bath in the Sharayu River. The great epic Ramayana is the history of Lord Rama's activities in the world, and the authoritative Ramayana was written by the great poet Valmiki.