Definition
The comitia centuriata was one of the principal popular assemblies of the Roman Republic, organized by Servius Tullius and structured around military units called centuries. All free male Roman citizens were enrolled in one of 193 centuries, grouped according to wealth and class. Votes were cast by century rather than by head, giving each century a single collective vote regardless of how many individuals it contained.
The assembly held significant constitutional functions: it elected the senior magistrates of the Republic (consuls, praetors, and censors), enacted certain categories of legislation, served as the court of final appeal in capital cases, and voted on declarations of war and peace. Because wealthier centuries were more numerous and voted first, the assembly's structure strongly favored the propertied classes — a majority could be reached among the top wealth-classes before the lower centuries voted at all.
Common Confusion
COMITIA CENTURIATA vs. COMITIA TRIBUTA vs. COMITIA CURIATA: Roman law recognized several distinct assemblies, and historical sources sometimes use comitia as a generic term, creating ambiguity. The comitia curiata was the older assembly organized by clan divisions (curiae), eventually reduced to ceremonial functions. The comitia tributa was organized by territorial tribe rather than by century and handled a broader range of ordinary legislation and election of lesser magistrates. The concilium plebis, sometimes loosely called a tribal assembly, was restricted to plebeians and produced the plebiscita. Researchers encountering any of these terms in historical legal sources should not assume equivalence — the constitutional competence and social character of each assembly differed materially.
Why It Matters in Research
This term appears almost exclusively in sources dealing with Roman law, constitutional history, and the classical foundations of republican government theory. It is not operative law in any modern jurisdiction but carries significant weight in two research contexts.
First, early American constitutional commentary drew explicitly on Roman republican institutions as comparative models. The Federalist Papers cite Roman assemblies when discussing the structure of republican government, and Kent's Commentaries engages Roman constitutional history as jurisprudential background. Researchers tracing the intellectual genealogy of American republican theory — separation of powers, representative assemblies, checks on popular majorities — will encounter the comitia centuriata as a reference point in founding-era legal thought.
Second, in Roman law scholarship proper, the assembly's structure is central to understanding the lex as a source of Roman law. Legislation passed by the comitia centuriata had constitutional standing distinct from edicts, senatorial decrees, and plebiscita. The gradual decline of the assembly's legislative function and its displacement by the concilium plebis and later by imperial enactment tracks the broader transformation of Roman constitutional order — a transformation that underlies much of the civilian legal tradition.
Burrill's entry is fragmentary (the text cuts off mid-sentence), so researchers relying on that source alone will need to supplement with Taylor's Elements of Civil Law and primary sources such as Aulus Gellius, Noctes Atticae, both of which Burrill himself cites.
Historical Dictionary Support
Burrill's Law Dictionary provides a compressed but accurate description: an assembly of the Roman people organized in centuries, instituted by Servius Tullius, encompassing all orders of the state while practically concentrating power in the patrician and propertied classes. Burrill points researchers toward Aulus Gellius, Kent's Commentaries, Taylor's Civil Law, and the Federalist — a concise but useful citation cluster for the era.
The entry's principal limitation is its truncation; the surviving text does not reach the assembly's legislative or judicial functions. Researchers should not treat Burrill as a complete account. Taylor's Elements of Civil Law, which Burrill cites at page 183, offers fuller treatment of the assembly's constitutional role within the hierarchy of Roman legal sources. Kent's Commentaries at volume 1, page 519 situates the comitia within a broader survey of Roman public law that remains useful for understanding how nineteenth-century American jurists received and interpreted Roman institutions.
Historical legal dictionaries generally treat the comitia centuriata as an antiquarian entry rather than a working legal term, reflecting the reality that Roman public law had no direct operative force in common law jurisdictions. Researchers should read these entries as intellectual history rather than as doctrinal authority.
Jurisdictional Note
The comitia centuriata is a term of Roman public law with no direct operative counterpart in any modern legal system. Its relevance to Anglo-American legal research is comparative and historical. Civil law jurisdictions with deeper Roman law foundations may engage the term more frequently in scholarly commentary on legislative theory and constitutional history.
Encyclopedia Cross-Reference
Law Mind Encyclopedia — Roman Constitutional Law
Law Mind Encyclopedia — Roman Popular Assemblies
Law Mind Encyclopedia — Sources of Roman Law