Treta Yuga

The Treta Yuga (Devanagari: त्रेता युग)is the second out of four yugas, or ages of man, in the religion of Hinduism, following the Satya Yuga of perfect morality and preceding the Dvapara Yuga. The most famous events in this yuga were Lord Vishnu's fifth, sixth and seventh incarnations as Vamana, Parashurama and Ramachandra respectively. The Dharma bull, which symbolises morality, stood on three legs during this period. It had all four in the Satya Yuga and two in the later Dvapara Yuga. Currently, in the immoral age of Kali, it stands on one leg.
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Treta Yuga (Sanskrit) [from treta triad, triple + yuga age] The second of the four great yugas which constitute a mahayuga (great age). It is said that during this age three parts of truth prevail; its duration is 1,296,000 years.
In the Mahabharata Hanuman, the learned monkey chief, gives a description of the treta yuga: "In the Treta Yuga sacrifice commenced, righteousness decreased by one-fourth; men adhered to truth, and were devoted to a righteousness dependent on ceremonies. Sacrifices prevailed with holy acts and a variety of rites. Men acted with an object in view, seeking after reward for their rites and their gifts, and were no longer disposed to austerities and to liberality from a simple feeling of duty" (abridgment by Muir 1:144). See also SATYA YUGA