Atlas / Organisations / Roman Republican Constitutionalism
Roman Republican Constitutionalism
Res publica · 509–27 BCE · Rome · Republican / Democratic · Held state power · coding confidence medium
Each axis runs from −10 to +10, with zero a genuine mixed or balanced position rather than an absence of opinion. A score describes a stated position and a governing record; it is not a judgement of merit. What each score means →
Core principles
Mixed constitution balancing consuls, senate and popular assemblies; liberty defined as non-domination under law.
Economic model
Patrician landholding, slave estates, publican tax-farming, grain distributions to the urban poor.
Organisation of powers
Annual collegiate magistracies, senatorial deliberation, tribunician veto, emergency dictatorship.
Reading note
The direct ancestor of every later 'separation of powers' argument, and of the modern word 'republic'.
Check a claim about Roman Republican Constitutionalism. The interactive atlas measures the distance between any two organisations across all six axes and shows which ones carry the disagreement.
Open in the atlasThe evidence for every score
All six cells are sourced. A rationale explains what the score is measuring and each artefact is something a third party can check without taking anyone's word for it.
EC · Economic organisation · scored +06
Coded +6: patrician landholding, slave estates and tax-farming.
- Documented act or statutePublican companies bid for tax collection contracts across the provinces.
CU · Social and cultural order · scored +06
Coded +6: a rigid order of estates with paternal authority in law.
- Documented act or statutePatria potestas gave the head of household legal power over adult children.
AU · Organisation of power · scored −03
Coded −3: annual collegiate magistracies with tribunician veto.
- Documented act or statuteEvery magistracy had at least two holders who could block each other, and tribunes could veto any act.
SC · Scale of decision · scored +03
Coded +3: a city-state constitution administering an empire.
- Documented act or statuteProvinces were governed by former magistrates with wide discretion.
ID · Rule of membership · scored +05
Coded +5 after the v2.2 review: restrictive but extensible.
- Documented act or statuteCitizenship was extended to the Italian allies after the Social War and to all free inhabitants in 212 CE.
CH · Method and tempo · scored −03
Coded −3: constitutional development by precedent, with emergency dictatorship.
- Documented act or statuteThe dictatorship was a constitutional office limited to six months.
Where it came from, and what came after
- succeededAthenian Democracy
Two different answers to the same question, and the source of the mixed-constitution argument.
- gave doctrine toAmerican Federalists
The Federalist Papers were published under the pen name Publius and argue from the Roman precedent throughout.
- was succeeded byConfucian Meritocracy
Independent traditions of rule by cultivated office-holders, neither derived from the other.
Scores that have been revised
Nearest organisations by measured distance
Straight-line separation across all six axes, out of a maximum of 49.0. Proximity means similarity of stated position, not endorsement and not resemblance in outcome.
- Somaliland2.8
- Post-War Liberia3.2
- Baltic Restorationist Nationalism3.5
- New Zealand National Party4.2
- American Federalists4.5
- Zambian Alternation4.7
Cite this page
Scores are revised on evidence, so a citation should carry the version it refers to. Version 4.3.1 is current; the revision log records every change.
Free to quote and reproduce with attribution. This is a synthesis rather than a peer-reviewed dataset — where an authoritative figure is needed, cite the Chapel Hill Expert Survey, the Manifesto Project or V-Dem.