Political theatre emerged in the early 20th century as artists responded to social upheavals. Influenced by Marxism and avant-garde movements, it addressed political issues through innovative techniques like breaking the fourth wall and using multimedia elements. Key figures like Bertolt Brecht and Erwin Piscator developed epic and documentary theatre styles. These approaches aimed to educate audiences about class struggle, fascism, and social injustice, inspiring later movements and continuing to influence contemporary political art.