that is equally famous and equally baffling, that of Cain and Abel. As conventionally understood, these two brothers were literal individuals, the elder, Cain, a tiller of the soil, and the younger, Abel, a herder. The improbability that two members of the same family would embrace antithetical lifestyles should tip us off to the fact that these were not individuals but emblematic figures, just as Adam was (Adam merely being the Hebrew word for Man).
If we understand these as emblematic figures, then the story begins to make sense. The firstborn of agriculture was indeed the tiller of the soil, as Cain was said to be the firstborn of Adam. This is an undoubted historical fact. The domestication of plants is a process that begins the day you plant your first seed, but the domestication of animals takes generations. So the herder Abel was indeed the second-born--by centuries, if not millennia (another reason to be skeptical of the notion that Cain and Abel were literally second-generation brothers).
A further reason for skepticism on this point is the fact that the ancient farmers and herders of the Near East occupied adjacent but distinctly different regions. Farming was the occupation of the Caucasian inhabitants of the Fertile Crescent. Herding was the occupation of the Semitic inhabitants of the Arabian peninsula to the south.
Another piece of background that needs to be understood is that in very ancient times farmers and herders had radically different lifestyles. Farmers were by the very nature of their work settled villagers; but herders (by the very nature of their work) were nomads, just as many present-day herding peoples are. The herding lifestyle was in fact closer to the hunting-gathering lifestyle than it was to the farming lifestyle.
As the farming peoples of the north expanded, it was inevitable that they would confront their Semitic herding neighbors to the south, perhaps below what is now Iraq--with the predictable result. As they have done from the beginning to the present moment, the tillers of the soil needed more land to put to the plow, and as they've done from the beginning to the present moment, they took it.
As the Semites saw it (and it is of course their version of the story that we have), the tiller of the soil Cain was watering his fields with the blood of Abel the herder.
The fact that the version we have is the Semitic version explains the central mystery of the story, which is
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