There have never been a skin whitening at the levant because of gene mutations but because of a mixture of Neanderthals and Homo sapiens sapiens. Neandertals have pheomelanin and Homos sapiens sapiens have eumelanin. These are two complete different and UNRELATED TYPES of melanin. Moreover, light skins already existed in Africa before, because of a lack of eumelanin and not because of a mixture with pheomelanin. You find these light skin people today in southern africa, and DNA Tests show they were among the founders of Egyptian civilization. Forget about your propagandas of skin whitening because of climates, this has been debunked 50 years ago