Intellectual lineage
Foundations25 cross-cutting

The shared roots every family descends from — the cross-cutting traditions of thought that run beneath the political branches, each opening to the figures who call it home.

Aesthetic Philosophy18th century to present2
Ancient Philosophy6th century BCE to 6th century CE4
British IdealismLate 19th-early 20th century1
Comparative Politics18th century to present4
Deontological Ethics18th century to present1
Dialectical Philosophy19th century to present1
Empiricism17th-18th century1
Enlightenment Philosophy18th century4
German IdealismLate 18th-early 19th century0
History of Ideas20th century to present4
Legal Reform18th-19th century0
MaterialismAncient to present4
Moral PhilosophyAncient to present4
Phenomenology20th century1
Philosophy of History18th century to present4
Political IdealismAncient to present0
Political PhilosophyAncient to present6
Political RhetoricClassical to present2
Rationalism17th-18th century0
Renaissance Humanism14th-16th century1
RepublicanismAncient to present11
Scholasticism12th-15th century1
SkepticismAncient to present2
Social Contract Theory17th-18th century, revived 20th century0
Value Pluralism20th century to present0
By family8 families

The branches each political family draws on directly. A tradition cited by more than one family appears under each — nothing here is orphaned.