Q: WHAT YEAR DID SHEM TURN 100?
A: IT DEPENDS WHAT CALENDAR YOU ARE USING!
On the Gregorian calendar (the one you might have on your wall) the year was 2383 BC.
On the Hebrew calendar, sometimes called the biblical calendar, the year was 1664 AM.
Genesis 11:11 After he begot Arphaxad, Shem lived five hundred years, and begot sons and daughters.