Mbh 1.64.3b

And he of a hundred sacrifices, possessed also of a thousand eyes, beholding that the Kshatriya monarchs ruled so virtuously, poured down vivifying showers at proper times and places and blessed all creatures. Then, O king, no one of immature years died, and none knew a woman before attaining to age. And thus, O bull of the Bharata race, the earth, to the very coasts of the ocean, became filled with men that were all long-lived. The Kshatriyas performed great sacrifices bestowing much wealth. And the Brahmanas also all studied the Vedas with their branches and the Upanishads. And, O king, no Brahmana in those days ever sold the Vedas (i.e., taught for money) or ever read aloud the Vedas in the presence of a Sudra. The Vaisyas, with the help of bullocks, caused the earth to be tilled. And they never yoked the cattle themselves. And they fed with care all cattle that were lean. And men never milked kine as long as the calves drank only the milk of their dams (without having taken to grass or any other food). And no merchant in those days ever sold his articles by false scales. And, O tiger among men, all persons, holding to the ways of virtue, did everything with eyes set upon virtue. And, O monarch, all the orders were mindful of their own respective duties. Thus, O tiger among men, virtue in those days never sustained any diminution. And, O bull of the Bharata race, both kine and women gave birth to their offspring at the proper time. And trees bore flowers and fruit duly according to the seasons. And thus, O king, the krita age having then duly set in, the whole earth was filled with numerous creatures.