Analysis of information sources in references of the Wikipedia article "Invoice" in English language version.
The archaeological discovery of what amount to ancient Mesopotamian invoices — insignia sealed in clay — underscores the economic and utilitarian roots of writing and reckoning. Eighty-five percent of cuneiform tablets uncovered at Uruk (3000 BCE), for example, represent economic records, and Egyptian temple and palace records are similar.
The archaeological discovery of what amount to ancient Mesopotamian invoices — insignia sealed in clay — underscores the economic and utilitarian roots of writing and reckoning. Eighty-five percent of cuneiform tablets uncovered at Uruk (3000 BCE), for example, represent economic records, and Egyptian temple and palace records are similar.