By working to live, creative effort developed. No longer was the sole occupation search for what existed which would sustain human life. Pursuit of sustenance was now furthered by manufacture of means to work with, as the bow and arrow. New uses were also developed for what humanity then had found. Implements of stone were made with which to produce as well as weapons to war, to prepare food as well as to hunt it, to protect or shelter as well as prospect or pursue what was desired. Mats and baskets were woven. The art of weaving was born.

As human living advanced further, pottery was invented, animals were domesticated, and other animal products besides meat began to be used. Milk became a food, furs were used to protect; agriculture developed; corn was cultivated in the west of the world; in the east all other grains were grown.

The east tended to increased domestication of animals, and the west to cultivation of plants that nourish. This required irrigation artificially produced. Building began with stones and bricks sun-dried. The caring for animals led to formation of herds and pastoral life among people. Thus more nourishment was needed for both animals and humanity. To produce it increased agriculture. Life became less wandering and warring and more sedentary and varied in manner of living. Cannibalism began to disappear. The energy spent earlier in invasion in search of supplies was passing into invention that aided in supplying living-needs from the resources of the environment.

Iron ore began to be melted and formed for uses it could serve. The plow and other implements, as the axe, spade, hoe, made less formidable the cultivation of the soil. Farming flourished as was impossible when humanity was less well equipped. This gave a renewed impulse to agriculture. Al-phabetical writing had its origin at this stage of human advance.