Around 7500 years ago, the climate was relatively benign and there is significant evidence of human occupation, but by approximately 3000 BC conditions had become much more arid, with the result that agriculture was confined largely to fortified oasis communities.
Eminyakeni eyi-7500 eyedlule, isimo sezulu besingalingani futhi kunobufakazi obukhona bokuhlala kwabantu, kepha cishe izimo ze-3000 BC bezingasasebenzi kakhulu, ngomphumela wokuthi ezolimo zazivunyelwe imiphakathi enezivikelo eziqinile.