AP World History: Modern
Authoritarian regimes are political systems in which a single entity, such as a leader or party, exercises significant control over the state, often limiting individual freedoms and political pluralism. These regimes typically maintain power through various means, including censorship, propaganda, and repression of dissent. After 1900, many countries experienced shifts towards authoritarianism as a response to social upheaval, economic crisis, or perceived threats to national security.