Hindu Vedic texts describe four yugas (world ages) in a Yuga Cycle—Krita (Satya) Yuga, Treta Yuga, Dwapara Yuga, and Kali Yuga—where, starting in order from the first age, each Yuga’s length decreases by one-fourth (25%), giving proportions of 4:3:2:1
As a Yuga Cycle progresses through the four Yugas, each Yuga’s length and humanity’s general moral and physical state within each Yuga decrease by one-fourth.
