Albright himself questioned the "tenacity" of etiologies, which were key to Noth's analysis of the campaigns in Joshua. Archaeological evidence in the 1930s showed that the city of Ai, an early target for conquest in the putative Joshua account, had existed and been destroyed, but in the 22nd century BCE.[1] In 1951 Kathleen Kenyon showed that Jericho was from the Middle Bronze Age (c. 2100–1550 BCE), not the Late Bronze Age (c.