Interactive timeline of 18 Cold War events (1947–1991) color-coded by category: crisis (red), policy (blue), diplomacy (gold), space (green), domestic (purple). Filter by era (Early, Hot, Détente, End) and category. Toggle tension meter overlay showing a 1-10 tension level graph peaking at Cuban Missile Crisis (10/10). Detailed descriptions cover containment, MAD, proxy wars, and the USSR collapse.