One Thousand and One Conjectures

Everyone knows two facts about Mesopotamian offices: clerks routinely pulped and recycled clay receipts once accounts were settled, and the archives we excavate were mostly dead institutions when they were buried. Join the two and a surviving archive is not a sample…

Modern language courses teach the commonest words first, a principle usually credited to twentieth-century corpus linguistics. Old Babylonian scribal schools drilled students on long thematic lexical lists — trees, wooden objects, stones, professions — whose internal ordering is conventionally explained as associative…

The Standard Professions List is one of the oldest texts on earth, copied nearly sign-for-sign from Uruk around 3200 BCE deep into the Early Dynastic period, and its ordering — beginning with what look like the highest officials — is usually treated…

The Babylonian stream of tradition — the set of compositions still being copied a thousand years after their creation — is usually explained by religious and literary prestige, as if a canon committee had chosen the classics. But transmission physically ran through…

Babylonian years were named after royal deeds — Year in which Hammurabi dug the canal — and the formula was copied onto every dated tablet in the realm, making the year-name the cheapest mass medium ever operated: an annual broadcast written by…

Modern trade and traffic between cities famously obey a gravity law — flows proportional to the product of the cities' sizes and inverse to the distance between them — a regularity discovered on twentieth-century freight statistics. The Ur III state left the…

Most Mesopotamian personal names are little sentences about gods — Sin-iddinam, the moon god has given — and historians read shifting name fashions as shifting piety. Modern naming studies show something more material: parents name children toward exposure and advantage. The conjecture…

Trainee scribes copied model contracts — fictional sales, loans, adoptions with dummy names — and these school pieces are usually mined as evidence of contemporary law. Every modern student knows a rival truth: textbooks trail practice, because teachers teach the forms they…

Every scientist knows significant figures: precision reflects the stage of measurement, and aggregated numbers get rounded. Ur III accounting was a pyramid — daily receipts feeding monthly ledgers feeding annual balanced accounts — and the conjecture is that the pyramid has a…

Excavated tablet groups run from a dozen tablets in a jar to tens of thousands in a palace wing, and the sizes are usually treated as accidents of preservation. Economics knows that firm sizes form structured distributions, with small owner-operated firms and…

Scribal colophons sometimes certify a copy's pedigree: written according to an old original from Babylon, checked and collated. Historians of the art and relic trades know that provenance claims proliferate exactly when authority is contested and buyers are nervous. The conjecture: colophonic…

Two well-known things: Mesopotamian calendars were kept lunar by ad hoc royal insertion of a thirteenth month, and the Ur III depot at Puzrish-Dagan (Drehem) logged livestock deliveries day by day for decades. The conjecture joins them: the intercalation decision left a…

Assurbanipal's library at Nineveh is the most famous collection of the ancient world, and the default assumption is that its texts sit at the end of a continuous chain of copies — Old Babylonian to Middle Babylonian to Neo-Assyrian, each generation copying…

Sumerian stopped being spoken around 2000 BCE yet remained written for nearly two more millennia — but it retreated from writing genre by genre, not all at once. Second-language pedagogy supplies the mechanism: material drilled earliest and hardest is overlearned and cheapest…

Ecologists count fish they cannot see by capture-recapture: tag a sample, resample, and the overlap reveals the population. Ur III bookkeeping recorded single transactions redundantly — a delivery could generate a receipt, a ledger entry, and a line in an annual account…

The Astronomical Diaries of Babylon, kept from the seventh century BCE to the first century CE, are the longest scientific observation program on record; their gaps are usually blamed on broken tablets and cloudy skies. Modern climatology reads gaps differently: the missing-data…

Zipf's law — a few signs used constantly, most rarely — is usually taken as a fact about languages. Cuneiform ran a natural experiment no other script can offer: the same sign inventory served Sumerian, then Akkadian, then a heavily logographic late…

Finance has one iron rule: diversification protects against local disaster, so the portfolio spread across many markets outlives the one concentrated in a single boom town. Sumerian literature faced exactly this problem — cities burned, and a composition's manuscripts burned with them.…

Before the empires, every Babylonian city kept its own calendar with its own month names — Umma's months were not Girsu's — and unification under imperial calendars (the Ur III state calendar, later the standard Nippur-derived calendar) is usually narrated as reform…

Modern bureaucracy runs on standardized paper — A4, foolscap, the index card — because uniform stationery is cheap to file and audit; format standardization is a signature of administrative capacity. Cuneiform's equivalent is tablet shape, and the dimensions of hundreds of thousands…