Clans had settlements near rivers. Each settlement had a meadow, for the mowing of hay, and a simple mill, with round timber huts, covered with branches or thatch or turf supported by a ring of posts. Inside was a hearth with smoke going up through a hole in the roof, and a cauldron for cooking food. There was an upright loom in the darkness. The floor was swept clean. At the door were spears or bags of slingstones ready for immediate use. The King lived in the largest hut. Gullies outside carried off excess water. Each hut had a garden for fruit and vegetables. A goat or cow might be tied out of reach of the garden. There was a fence or hedge surrounding and protecting the garden area and dwelling. Buckets and cauldrons which had originated from the Mediterranean were used. Querns with the top circular stone turned by hand over the bottom stone were used for grinding grain. There were ovens to dry and roast grain. Grain was first eaten as a porridge or cereal. There were square wood graneries on stilts and wood racks on which to dry hay. Grain was stored in concealed pits in the earth which were lined with drystone or basketwork or clay and made airtight by sealing with clay or dung. Old pits were converted into waste dumps, burials, or latrines. Outside the fence were an acre or two of fields of wheat and barley, and sometimes oats and rye. Wheat and rye were sown in the fall, and oats and barley in the spring. Sowing was by men or two oxen drawing a simple scratch plow. The crops were all harvested in the summer. In this two-field system, land was held by peasants in units designed to support a single extended family. These fields were usually enclosed with a hedge to keep animals from eating the crop and to define the territory of the settlement from that of its neighbors. Flax was grown and made into linen cloth. Beyond the fields were pastures for cattle and sheep grazing. There was often an area for beehives. This was subsistence level farming. Pottery was given symmetry when formed with use of a wheel and heated in increasingly hot kilns. From kilns used for pottery, it was noticed that lumps of gold or copper ore within would melt and assume the shape of what they had been resting on. These were the first metals, and could be beaten into various shapes, such as ornaments. Then the liquid ore was poured into moulds carved out of stones to make axes and daggers, which were reheated and hammered to become strong. Copper-tipped drills, chisels, punches and awls were also made.