http://mlkc77sivn6eghltmruu4hwadpuxmniamqe6w7y7l25xysxumpld7jyd.onion/vault/D140TSHOWS01E01.html
Here, about 5,000 years ago, the Sumerians developed the first city states. The city dwellers depended for their sustenance on taxing the surrounding countryside, and Irving produces a clay tablet from this period that is the distant ancestor of today's spreadsheet: a grid of boxes ruled into the clay, with symbols that represent numbers, and small stylised pictures that...