May 3, 2019 | General Interest, Technology |
Apr 12, 2019 | General Interest, Technology |
Jul 30, 2013 | History, Technology |
From prostitution to dealing on the stock exchange, trading has been around for tens of thousands of years. But when did mankind move from a barter system to exchanging goods for bits of metal and paper ?
Feb 19, 2013 | Social Sciences |