According to the March 2011 report of the Italian-Palestinian excavations at Jericho, a comment is made that
Hence, Unit L.1770 can be confidently considered part of the Iron Age settlement, arisen on Tell es-Sultan in the 10th-9th century BC on the Spring Hill, where it was largely excavated by the Austro-German Expedition in 1907-1909 [Here the large building known as “Hilani”, excavated by Sellin and Watzinger (Sellin – Watzinger 1913, 67-70, fig. 42, pls. 15-16, I, IV; Weippert – Weippert 1976, 139-146, figs. 8-9), should date from early Iron Age II (Sultan IVb), 10th-9th century BC.], and then spread in the late 8th -7th century BC on the slopes of the tell, where it was excavated by KM. Kenyon at the foot of Trench I, Trench II and Trench III (here Iron IIC buildings were terraced back into the probably considerably eroded MB III rampart; Kenyon 1981, 111-113, pl. 232; 171-173, pl. 255c; 219). The Iron Age IIC unit in Area A is perhaps a productive installation at the household level (fig. 11).
This comment has enormous relevance for the historical accuracy and origin of 1 Kings 16:34 and the Elijah-Elisha cycle. According to Kathleen Kenyon and Walter Mattfeld, Iron Age Jericho did not exist before its expansion after the Sennacherib campaign. The statement above, while not absolutely conclusive (i.e., published and explained clearly and officially), certainly does support the idea Jericho was, in fact, founded in Ahab’s time.