Al-Jazirah is extremely important archeologically. This is the area where the earliest signs of agriculture and domestication of animals have been found, and thus the starting point leading to civilization and the modern world. Al-Jazirah includes the mountain Karaca Dağ in southern Turkey, where the closest relative to modern wheat still grows wild. At several sites (e.g. Hallan Çemi, Abu Hureyra, Mureybet) we can see a continuous occupation from a hunter-gathering lifestyle (based on hunting, and gathering and grinding of wild grains) to an economy based mainly on growing (still wild varieties of) wheat, barley and legumes from around 9000 BC (see PPNA). Domestication of goats and sheep followed within a few generations, but didn't become widespread for more than a millennium (see PPNB). Weaving and pottery followed about two thousand years later.