Writingisamuchnewerinventionthantalking.Nobodyknowswhen...
问题详情：Writingisamuchnewerinventionthantalking.Nobodyknowswhenpeoplefirstbegantotalk,butsofarasweknow,theydidnotbegintowriteuntilsevenoreightthousandyearsago.InEgypt,Mesopotamia,andChina,andlaterinPa...