Twelve Tables
Like most other early codes of law, they were about the procedure: They specified in detail, how something needed to be done. They also gave the same detail, about what the punishment was if the procedure wasn't followed.  In most of the surviving quotations from these texts, the original table that held them is not given. Scholars have guessed at where surviving fragments belong by comparing them with the few known attributions and records, many of which do not include the original lines, but paraphrases. It cannot be known with any certainty from what survives that the originals ever were organized this way, or even if they ever were organized by subject at all.