The Canaanite culture that gave rise to the Phoenicians apparently developed "in situ" from the earlier Ghassulian chalcolithic culture. Ghassulian itself developed from the Circum-Arabian Nomadic Pastoral Complex, which in turn developed from a fusion of their ancestral Natufian and Harifian cultures with Pre-Pottery Neolithic B (PPNB) farming cultures, practicing the domestication of animals during the 6200 BC climatic crisis, which led to the Neolithic Revolution in the Levant. Byblos is attested as an archaeological site from the Early Bronze Age. The Late Bronze Age state of Ugarit is considered quintessentially Canaanite archaeologically, even though the Ugaritic language does not belong to the Canaanite languages proper.