Last Christmas holidays I spent some time reading “The Red Sea Scrolls” by Pierre Tallet and Mark Lehner (ref.1). The readable book – with a wealth of instructive illustrations - is about a recently excavated papyrus archive from Wadi el-Jarf, an ancient Egyptian harbour on the Red Sea. Both the harbour and the papyri are probably the oldest known of their kind, stemming from the beginning of the 4th dynasty around 2600 BC. The harbour was intermittently in operation during the reigns of kings Sneferu and Khufu for, among other things, copper and turquoise mining expeditions to the Sinai across the sea. The papyri however are from the very last year of Khufu’s reign, not long before the harbour was decommissioned and the expeditions started from Ayn Sukhna instead under Khufu’s son Khafre. Furthermore the papyri do not mention the Sinai-expeditions at all, but give instead detailed accounts about the workforce putting the finishing touches to Khufu’s Great Pyramid at Giza.
The papyri are partly accounts documents listing the supply of foodstuff and tools to the pyramid builders, and partly logbooks about day-to-day activities of different work-teams. Most striking is the display of natural and consequent use of administrative tools. Every move and every gadget was recorded on papyrus spreadsheets, with input on the time axis from the newly launched Egyptian civil calendar. That means that virtually everyone was aware of the actual civil date and that at least the boss of a work-team of some 40 men was able to read/write and had book-keeping skills.
The logbook of an Inspector Merer and a bread accounts document are the least fragmentary parts of the Wadi el-Jarf papyri. The entries are dated around the Egyptian New Year and continue almost uninterrupted for several ten days periods (decans, “Egyptian weeks”) and months. For some reason Tallet and Lehner assume that Merer’s logbook, explicitly dated to the first day of the inundation season, commenced in July but this is probably a mix-up of facts about the civil calendar and nearly two months off the real time of the (solar) year when things happened. This makes that the authors also miss the first Sothic date for the Old Kingdom which seems to be included in the papyrus archive from Wadi el-Jarf. Read more here.
Ref.1: Tallet, P. & Lehner, M. (2021). The Red Sea Scrolls. How Ancient Papyri Reveal the Secrets of thePyramids. Thames & Hudson, London. ISBN 978-0-500-05211-2