Pre-historic men made tools out of bone, ivory, antler, hide, stone, wood, grass, metals (gold, copper and silver) and animal fibers. Various tools for cutting (hand axe, chopper, adze and celt), scrape or chop (flake tool), and tools to pound, pierce, roll, pull and lever were made and used. As building materials, they used bones such as mammoth ribs, hide, stone, metal, bark, bamboo, and animal dung.
Pre-historic men also used bricks and lime plaster as building materials. For example, mud bricks and clay mortar dated to 9000 BC were found in Jericho. These mudbricks were formed with the hands rather than wooden moulds and herringbone pattern were made by the brick-maker's thumbs.
Building Techniques
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