Political Ideologies
From the Enlightenment onward — liberalism, conservatism, socialism, and their offspring as one branching tree of political thought.
Each school is a star; the threads trace teachers to their heirs.
Select any school in the tree to read about it.
All schools by tradition
Political thought
- c. 1680 →
Systematic reflection on how societies should be governed. Every ideology below is one answer to a single question: how should power, freedom, and equality be balanced among people?
Liberalism
- Locke, Smith · 17th–18th c.
from Political Thought
The founding liberal creed: individual rights, government by consent, the rule of law, and free markets. Rooted in Locke and Smith, it made liberty and limited government its first principles.
- T. H. Green, Keynes · c. 1900
from Classical Liberalism
Arguing that real freedom needs more than the absence of restraint, social liberals accepted an active state to secure education, health, and welfare — the intellectual basis of the modern mixed economy.
- Hayek, Nozick · 20th c.
from Classical Liberalism
Keeping faith with classical liberalism against the welfare state, libertarians push individual liberty and free markets to the limit, seeking the smallest possible government.
Conservatism
- Edmund Burke · 1790
from Political Thought
Born in Burke's reaction to the French Revolution, conservatism distrusts abstract blueprints, valuing tradition, gradual reform, and the accumulated wisdom of established institutions.
- Europe · 20th c.
from Conservatism
Blending conservative respect for tradition with social concern drawn from Catholic teaching, Christian democracy accepted the welfare state and market economy alike — a centrist force in postwar Europe.
- USA · late 20th c.
from Conservatism
A largely American current that fused free-market economics with a robust, assertive foreign policy and defence of traditional values — conservatism turned outward and interventionist.
Socialism
- early 19th c.
from Political Thought
Reacting to industrial inequality, early socialists like Owen and Saint-Simon called for common ownership and cooperation in place of competition — putting equality at the centre of politics.
- Karl Marx · 1848
from Socialism
Marx recast socialism as a science of history: class struggle drives change, and capitalism's contradictions must give way to a workers' revolution and, ultimately, a classless society.
- Lenin · 1917
from Marxism
Lenin adapted Marxism for a vanguard party to seize power in a still-agrarian Russia, founding the model of the one-party communist state that would spread across the 20th century.
- Bernstein · c. 1900
from Socialism
Bernstein's revisionists broke with revolution, arguing socialism could be won gradually through the ballot box. Social democracy built the welfare state within capitalism rather than overthrowing it.
Nationalism
- 19th c.
from Political Thought
The idea that humanity is divided into nations, each entitled to its own self-governing state. A powerful modern force, it drove both liberation from empires and, in darker forms, exclusion and war.
Anarchism
- Proudhon, Bakunin · 19th c.
from Political Thought
Anarchists reject the state itself as inherently coercive, seeking a society ordered by voluntary cooperation. They split bitterly from Marx over whether any state, even a workers' one, could be trusted.
- Kropotkin · c. 1880
from Anarchism
Kropotkin married anarchism's rejection of the state to common ownership, envisioning stateless communes governed by mutual aid and the principle 'from each according to ability, to each according to need'.
Authoritarian
- Mussolini, Hitler · 1920s–40s
from Nationalism
An extreme, anti-liberal fusion of nationalism with the total state: cult of the leader, glorification of struggle and force, and suppression of the individual beneath the nation or race.
Green & other
- since 1970s
from Political Thought
A newer family placing ecological sustainability at the heart of politics, arguing that environmental limits reshape every question of economy and justice — often paired with grassroots democracy and non-violence.
- since 19th c.
from Political Thought
A movement and body of thought holding that the sexes should be politically, economically, and socially equal, exposing how ostensibly neutral institutions have been built around male power.
Related encyclopedias
The Atlas is one connected web — continue with a neighbouring encyclopedia.
Who Influenced Whom
The web of intellectual influence across disciplines.
Open →TreeEconomic Schools
From mercantilism to the moderns, branch by branch.
Open →NetworkEconomists Network
Who influenced and critiqued whom — Smith to Kahneman.
Open →TimelineHistory of Economic Thought
From Aristotle and the scholastics to Keynes, Friedman, and behavioural science.
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