enyon's work was accepted for the remainder of the 20th century, until in 1990 Bryant Wood published a paper in which he challenged her methods and conclusions. The essence of Wood's case was that locally-produced pottery from the site coincided with other local pottery common to around 1400BC, and that carbon-14 testing (a technology not available to Kenyon) of a sample of charcoal from the site indicated a date of 1410 BC. Wood's case against Kenyon's dating caused a stir in archaeological circles, but failed to gain a large following among scholars
.http://en.wikipedia.org/wiki/Battle_of_Jericho#cite_note-0 The argument was further settled and Kenyon's findings confirmed in 1995 by radiocarbon tests using more advanced techniques: these dated the destruction to 1562 BCE (plus/minus 38 years) with a certainty of 95%. - wikipedia