Q: WHAT YEAR DID NADAB BEGIN HIS REIGN IN ISRAEL?
A: IT DEPENDS WHAT CALENDAR YOU ARE USING!
On the Gregorian calendar (the one you might have on your wall) the year was 898 BC.
On the Hebrew calendar, sometimes called the biblical calendar, the year was 3149 AM.
I Kings 15:25 – And Nadab the son of Jeroboam began to reign over Israel in the second year of Asa king of Judah, and reigned over Israel two years.
1 Kings 15:9-10 New King James Version (NKJV)
Asa Reigns in Judah
9 In the twentieth year of Jeroboam king of Israel, Asa became king over Judah. 10 And he reigned forty-one years in Jerusalem. His grandmother’s name was Maachah the granddaughter of Abishalom.