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Fit for the task’: equipment sizes and the transmission of military lore, sixth to tenth centuries

The interpretation of the measurements given in Byzantine military manuals from the sixth to the tenth centuries has been a problematic matter. If the main conclusions of currently accepted scholarship are applied, an appearance is created of equipment much too large to be usable. When the measurements are compared to equipment which practical experience and comparable history show to be functional, it can be seen that as the middle Byzantine period progressed units of measurement were devalued. The sources also reveal the processes whereby military lore was transmitted, including accidental corruption and deliberate revision.