Roger Whittaker Whistles ..


Timeline Man


The Cordwainer


Solar system 2


Betty Broderick


Evolutionary Reptilian Features


Ancient Britons


In The Clouds


The English Language


African eMigration

Summary

Summary:Scientists discovered that early humans in East Africa had — by about 320,000 years ago — begun trading with distant groups, using color pigments and manufacturing more sophisticated tools than those of the Early Stone Age, tens of thousands of years earlier than previous evidence has shown in eastern Africa. As earthquakes remodeled the landscape and climate fluctuated between wet and dry conditions, technological and social innovation would have helped early humans survive unpredictable