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population change

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population change
For the past million years worlds population has grown almost continiously, although not always same rate. despite demographers are predicting that our population grown will slow down and ten stabilize or stay steady.

There have been three great population surges in life of the humankind. each followed a technological revolution the dramatically increased the number of people that the world keep alive. the first revolution was the invention of tool making {using stone and animal parts to make hunting and the cooking equipmrny} that occured gradually around the world between a million and 100,000 years ago. the second was invention of farming . which began at the end of the last ice age, about the 100,00 years ago, agriculture helped the worlds population rise from less than 10 million to about 150 million at the time of christ and 350 million one thousand years ago. then there are fourteenth century the number of peopel dropped dramitically because of the black death - a terrible sickness that spread rappidly across europe and Asia. in the Europe it reduced the population by a third

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