Analysis of information sources in references of the Wikipedia article "유다 왕국" in Korean language version.
For Israel, the description of the battle of Qarqar in the Kurkh Monolith of Shalmaneser III (mid-ninth century) and for Judah, a Tiglath-pileser III text mentioning (Jeho-) Ahaz of Judah (IIR67 = K. 3751), dated 734–733, are the earliest published to date.
As this essay will show, however, the premonarchic period long ago became a literary description of the mythological roots, the early beginnings of the nation and the way to describe the right of Israel on its land. The archeological evidence also does not support the existence of a united monarchy under David and Solomon as described in the Bible, so the rubric of “united monarchy” is best abandoned, although it remains useful for discussing how the Bible views the Israelite past. [...] Although the kingdom of Judah is mentioned in some ancient inscriptions, they never suggest that it was part of a unit comprised of Israel and Judah. There are no extrabiblical indications of a united monarchy called “Israel.”