Nabu-ri-man-nu (also spelled Nabu-rimanni; Greek sources called him Ναβουριανός, Nabourianos, Latin Naburianus) (fl.
Already Franz Xaver Kugler proposed that tersitu can be interpreted as "table" here; in another context it seems to mean something like "tool", but in yet another the word refers to a blue enamel paste.
van der Waerden later (1963, 1968, 1974) concluded that System A was developed during the reign of Darius I (521–485 BC).
The earliest preserved System A clay tablets (BM 36651, 36719, 37032, 37053) calculate an ephemeris for the planet Mercury from 424 to 401 BC.
If Naburimannu was the originator of System A, then we can on that basis place him in Babylonia sometime between the Persian and Macedonian conquests.