When was Israel first called Israel?

A:

The Merneptah Stele, dated to approximately 1205 BCE, refers to "Israel", although not a a state or kingdom but merely as a people or tribal group without a central government as far as the Egyptians were concerned.

There is a developing consensus among historians that, contrary to the biblical record, Israel did not become a state until the time of Omri, whose reign began around 880 BCE. This was probably the time when there was actually a national entity called "Israel". The Tel Dan stele mentions "the king of Israel" and is usually dated to the time of Omri or his son Ahab.