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This achilles heel of primitive accounting meant that the bookkeeping limited the business to the size with which it could maintain honest bookkeepers. Where, honest bookkeepers equals family members. All others, typically, stole the boss's money. (Family members did too, but at least for the good of the family.) So until the 1400s, most all businesses were either crown-owned, in which case the monarch lopped off the head of any doubtful bookkeeper, *or*...