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supplying land with water through the network of canals

social class

a group of people having similar backgrounds, incomes (how much money someone makes) and ways of living


more then is needed


a worker who is especially skilled in crafting items by hand


a society that has cities, essential government run byofficial leaders and workers who specialize in various jobs


a modern human or a member of an earlier group that may have included ancestors or relatives of modern humans

stone age

a period of time during whitch hodminids made lasting tools and weapons mainly from stone. The earliest known period of prehistoric culture


a person who has no settled hame


to adapt wild animals and to breed them for human use


written and other recorded events of people


time before writing was invented


a scientist who examines objects to learn about human past

oral traditions

stories passed down by word of mouth


the study of earths surface and the processes that shape it

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