The calendar: a calendar on the reverse names regnal year nine of Djeserkare, the throne name of Amenhotep I. Scholars have long debated how that calendar relates to Egyptian absolute chronology, so the familiar date c. 1550 BCE should be read as a useful approximation rather than a day or even a securely fixed year.
Writing and material: palaeography places the hand in the early Eighteenth Dynasty. Radiocarbon testing conducted in 2014 and published by Bernd Kromer, Lutz Popko, and Reinhold Scholl supports a date in the last quarter of the sixteenth century BCE. Together these strands make a much later copy unlikely without resolving every chronological question (Kromer, Popko, and Scholl 2019).
Older material: repeated opening formulae, shifts in subject, internal claims to inherited knowledge, and parallels in other medical papyri show compilation and transmission. They do not permit every prescription to be assigned to an earlier reign. Statements within the manuscript that a remedy came from an ancient book are evidence of how authority was claimed, not independent proof of a First Dynasty origin.
Unknown makers: no ancient author is named, and the original owner or institutional setting is unknown. “Ebers” identifies a nineteenth-century purchaser and editor. The surviving object can reveal scribal expertise, but not whether its source passages came from one archive, several teaching collections, oral instruction, or repeated copying across different settings.