**Enosh**, when he was 31 years old [(which was Year 266 of creation)], denied God, blessed be He, and began to call upon idolatry until Noah was 480 years old [(which was Year 1536 of creation)]. Then came the decree of the Flood and a period of 120 years for building the ark, so that they might repent.

Thus, from Year 266 until Year 1536 is 1,270 years, corresponding to the numerical value of the verse "And it came to pass when man began to multiply on the face of the earth and daughters were born to them," which equals 1,270 [(Pirkei d'Rabbi Eliezer, Parashat Bereishit)].

**At that time**, the children of Adam began to multiply on the face of the earth and to grieve their souls and to sin and rebel against HaShem. And it was in the days of Enosh, and the children of Adam continued to rebel against HaShem and worshipped other gods and abandoned HaShem all the days of Enosh and his sons, and the anger of HaShem was kindled, and HaShem brought upon them the waters of the river Gihon. [In the Mechilta and Tanchuma on Yitro, the ocean rose up and destroyed a third of the earth.

And in Bereishit Rabbah chapter 23, in the second chapter, it says the verse "He who calls for the waters of the sea and pours them" (Amos 5:9) refers to two times the ocean flooded a third of the world: once in the days of Enosh and once in the generation of the Dispersion (see Yalkut Amos 5). But in Yuchsin Year 1235 it writes twice in the days of Enosh and twice in the days of Cainan, and so it is concluded.] Despite all this, they did not desist from their evil ways.

In those days there was no sowing or reaping, and there was no food for mankind, and there was a great famine. And the seed that they sowed became thorns and thistles and briers, for from the days of Adam this matter was upon the earth due to God's curse of the ground for Adam's sin. And when mankind continued to rebel against HaShem, the earth also increased its corruption [(Sefer HaYashar)].