Contradictions: Hint that Genesis 1 and 2 are Allegorical

Notice the plethora of very precise chronology in the following passage:"In the six hundredth year of Noah's life, in the second month, on the seventeenth day of the month, on that day all the fountains of the great deep burst forth, and the windows of the heavens were opened. And rain fell upon the earth for forty days and forty nights ... and the waters prevailed upon the earth for a hundred and fifty days ... At the end of a hundred and fifty days the waters had abated , and in the seventh month, on the seventeenth day of the month, the ark come to rest on the mountains of Ararat. And the waters continued to abate until the tenth month; in the tenth month, on the first day of the month, the tops of the mountains were seen ... In the six hundred and first year, in the first month, the first day of the month ... Noah removed the covering of the ark, and looked, and behold the face of the ground was dry. In the second month, on the twenty-seventh day of the month, the earth was dry." Genesis 7:11- 8:5.Does this read like a myth? I don't think so. It reads like real history.