Israel appears to have used the non-accession method, while Judah used the accession method until Athaliah seized power in Judah, when Israel's non-accession method appears to have been adopted in Judah.
Israel appears to have used the non-accession method. Judah used the accession method. Athaliah seized power in Judah. Israel's non-accession method appears to have been adopted in Judah.