The aim of the present paper is to disclose forgotten aspects of the economic history of the Helladic Bronze Age (HBA) in general and the history of economic accounting and administration praxis in part. Those aspects “came” to us via the so many discovered palatial “Linear B” inscriptions drawn on fire-hardened clay tablets. The most famous “Linear B” palaces are those of Knossos, Phaistos (Aghia Triada), Mycenae, Thebes, Pylos and other distributed in the whole Helladic region. But the related disclosed information was first accessible only after the adventurous and most exciting deciphering work of Michael Ventris and John Chadwick. These palatial clay tablets recordings allow us to get deep insights into the capability of the HBA society and economy to solve problems concerning daily (mechanisms of allocation, distribution and collection in form of services, dues, taxes and other liabilities or rights) issues but also to master exceptional issues like warfare, distant trade and an extended Mediterranean Thalassocracy. All those were managed through a palatial administrative system, served by the royal (“wanax”) elite and by an excellent “guild” of scribes, using a standardized administration (accounting, measurement, weighing and recording) system.