My idea; All civs come to genesis with a small compliment of racially aligned and partially randomized skills, and these skill remain default to that civ. Perhaps an elven civ get their mysterious humain wood production, a developed textile industry, boying, herbal lore, and butchering, with a possibility of animal taming, spears, swords, wooden chest plates and boots. Dwarves might get smelting, a woodcutting, axes, underground farming, breastplates, picks and siege weapons, with a possibilty of (any part of) a full armor compliment, current dwarf associated weapons, and any part of masonry, various metal to smelt, and the secret of steel. A human civ gets carpentry, farming, herbal lore, smelting, a lesser metal like silver, spears and daggers, with a small chance of any skill, especially large weapons. Artisans in the first 50 years of creation would automatically get all their civs skills. Anyone who trains under an artisan of a curtain skill (proficient?) would obtain their skills over time. Skills can be forcibly taken from foreign artisans, or traded by civ leaders for artifacts, large sums of wealth, or other skills. New skills can be created by racial means (moods for dwarves, maybe other races would have a small chance when someone obtained mastery) Skills created within a race can never be outside a curtain racial set (elves will never create a halberd) but there is no restriction on what skills races can obtain by other means. Such transfers would be rare. Some skills some races wouldn't be able to obtain high proficiency in, but these wouldn't line up with the skills that they can obtain naturally. Elves can become master smiths, but are the poorest miners, so elven metallurgy would be high quality, but tend to be limited to common surface metals, baring outside influence.