History Replay
World War I & the Roaring Twenties
Wartime inflation, a sharp 1920–21 depression, then a decade of booming stocks and new technology.
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Gray bands = official recessions (NBER). Orange dots = key events. Stepped lines are annual averages. Data sources
🌍 Global context: the world’s largest economies
Gross domestic product in current U.S. dollars, 1960–2023 (World Bank). The orange line follows the year you are replaying. Click a country to show or hide it.