Japheth the sons of Noah following the Flood, beginning with the descendants of Japheth: The Book of Genesis is the first of the five books of the Torah, that accounts of Israel's origins as a people. Scholars increasingly see this as a product of the Achaemenid Empire (probably 450-350 BCE), although some would place its production in the Hellenistic period (333-164 BCE) or even the Hasmonean dynasty (140–37 BCE). The story of Japheth and his brothers may be even more recent: almost none of the persons, places and stories in the first eleven chapters of Genesis (called the Primeval history) are
Shem 10:21 refers to relative ages of Shem and his brother Japheth, but with sufficient ambiguity to have yielded different English translations. The verse is translated in the King James Version as: "Unto Shem also, the father of all the children of Eber, the brother of Japheth the elder, even to him were children born." However, the New American Standard Bible gives: "Also to Shem, the father of all the children of Eber, and the older brother of Japheth, children were born". According to Genesis 10:22-31 ("Jewish Publication Society Translation" of 1917): Genesis 11:10 records that Shem was 100 years old