Abstract
Abstract The evolution of artifacts has been accretive in ideas, materials, energy, and function, resulting in increasing numbers and kinds of artifacts, whereas ideological and social evolution has largely been substitutive and slower. Innovations in caloric, chemic and biologic energies may have been initiated by women, with elaborations by men resulting in specialization. Evolution of materials used in the manufacture of the food, shelter, tool, and toy functions now puts us firmly in the Synthetic Stage, preceded by half a million years of the Natural Stage of human artifact evolution. The toy function is being increasingly interwoven with other functions. Trade in techniques, materials, and finished artifacts has resulted in artifactual similarities around the world, giving hope for a true unification of mankind.
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