The Reality of Babylonian Languages
The Babylonians primarily spoke Akkadian, specifically the Babylonian dialect of it. But that's where it gets complicated fast, because if you're actually working with primary sources, you quickly realize that cuneiform writing doesn't map cleanly onto a single spoken language. Sumerian was still being used liturgically and as a scholarly language alongside Akkadian for over a thousand years after it stopped being a daily spoken tongue. So when you see a text, figuring out what language it's actually written in is often the first real problem you hit. Akkadian is the answer you want, but here's the part most intro articles gloss over: Akkadian itself has East and West branches, and the Babylonian dialect diverged noticeably from the Assyrian variety that flourished upriver. They're mutually intelligible at a basic level but share only enough DNA to convince a beginner they're the same thing. I've seen people treat a lexical difference as a major grammatical divergence when it was just regional variation. The verb stem shaprus versus shapraš in different periods can look like a completely separate paradigm if you're not checking your date ranges. The tricky part is that most cuneiform texts from the Neo-Babylonian period, roughly 626 to 539 BCE, are overwhelmingly in Akkadian. You'll find administrative tablets, legal contracts, literary compositions, and royal inscriptions all in that language. But then you run into a bilingual text or a lexical list and suddenly Sumerian is back in the room. It's not a relic at that point, it's a living scholarly tool. Scribes were trained reading and writing Sumerian, and they produced glossaries and word lists that modern researchers still depend on for understanding Akkadian vocabulary that lacks clear parallels.
I spent several months working through a corpus of Economic Texts from the reign of Nebuchadnezzar II, and the main headache wasn't the Akkadian grammar itself. It was the sheer volume of Sumerian logograms appearing in purely administrative Akkadian texts. A tablet might say something like "29 kor barley, ration of the workers" and the word for barley could be written with the Sumerian logogram ŠE. To someone who hasn't built the habit of recognizing these, it looks like random Sumerian infiltration. It's not. It's standard scribal practice, and the logograms are read as their Akkadian equivalents in context. One specific edge case that cost me weeks was a tablet where a scribe had mixed dialectal features in a way that made dating nearly impossible. The orthography looked late, the linguistic forms were archaizing, and the paleography sat somewhere in between. I ended up cross-referencing the personnel names against known archival corpora from the same site, which pinned it to a specific administrative context. The language alone wouldn't have done it. In my experience, that's the norm rather than the exception when you're working with undated or poorly provenanced texts. There's also the matter of foreign language contact. The Neo-Babylonian period saw Aramaic become increasingly important as a spoken lingua franca. By the Late Babylonian period, Aramaic isn't just present in the archaeological record, it's actively displacing Akkadian in everyday usage. You can see it in the documentary papyri and ostraca. Scholars who only study the literary and royal inscriptions get a distorted picture of what people actually spoke day to day. The gap between the high register of stone monuments and the language of a market receipt is substantial.
If you're trying to learn or work with these texts, the common trap is assuming that fluency in one dialect transfers cleanly to the other. It doesn't. The phonological changes from Old Babylonian to Neo-Babylonian are systematic but dense. Vowel shifts, consonant reductions, and orthographic simplifications accumulate to the point where an OB text that looks familiar can become nearly opaque in LB form. I recommend starting with the standard grammars by Ungnad and von Soden, but don't skip Reiner's Akkadian as a Crystalline Structure. It's old but it still gives you the clearest sense of the morphological system before you drown in paradigm tables. The biggest bottleneck I keep running into is the disparity between published texts and the actual state of the tablet collections. Many Old Babylonian texts were edited in the mid-twentieth century with limited photographic documentation. When I tried to verify a reading on a lexical text from the Baghdad collection, the published version didn't match what I saw in the high-resolution images. The editor had filled lacunae in ways that made linguistic sense but weren't supported by the trace evidence. This happens more often than the field admits, and it matters when you're making arguments about dialectal variation or chronology. For practical purposes, if you need a solid baseline, focus on Standard Babylonian first. That's the version you'll encounter in the Epic of Gilgamesh and most literary compositions. It's the most stable dialect in the cuneiform corpus and has the best secondary literature. From there, branch out into the economic and legal texts if that's your interest, but don't treat them as the same register. The language of a lease agreement is structurally and lexically different from the language of a temple hymn, even when both are in the same dialect.
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