Definition - What does Treta Yuga mean?
According to Hindu philosophy, the Yugas denote four distinct ages of mankind. Currently we are in the Kali Yuga. The Treta Yuga is the Sanskrit name given to the second of the four Yugas. Translated, the term means "three collections." The Treta Yuga lasted for 1,296,000 years and saw important events such as the appearance of agriculture and mining. Three avatars of Lord Vishnu were said to appear during this Yuga: Vamana, Parashurama and Rama as the fifth, sixth and seventh incarnations, respectively.
Yogapedia explains Treta Yuga
During this era, the power of mankind was diminished as people became less spiritual and more focused on material possessions. Wars broke out frequently and climate changes became common place, giving rise to deserts and oceans.
Despite these seemingly negative effects, the Treta Yuga also brought knowledge of universal magnetism. This knowledge allowed humans to understand the forces of nature and the true nature of the universe.
Each one of the distinct Yugas is linked to one of the four universal powers of maya and gives mankind the chance to understand this power and bring it under control.