Writingisamuchnewerinventionthantalking.Nobodyknowswhen...
問題詳情：Writingisamuchnewerinventionthantalking.Nobodyknowswhenpeoplefirstbegantotalk,butsofarasweknow,theydidnotbegintowriteuntilsevenoreightthousandyearsago.InEgypt,Mesopotamia,andChina,andlaterinPa...