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Year axis:
Study 43
Band / swimlane context timeline
Swimlane / world-history view: long spans as soft bands, anchor dates as markers. Zoom, pan, and layer by theme—reference context, not a causal model.
Periods are shown as horizontal bands; point events are shown as markers. Drag to pan, scroll to zoom, and toggle layers on or off.
Loading year range controls
Drag · scroll to zoom · bands; point names on hover (labels when zoomed)
1920
1930
1940
1950
1960
1970
1980
1990
2000
2010
2020
Cold War
Bretton Woods era
Mohammad Reza Pahlavi (Shah) — Pahlavi monarchy ·2
Reza Shah Pahlavi (Shah of Iran) ·2
Franklin D. Roosevelt (President) ·3
In simple terms
This swimlane view shows long periods as soft bands and anchor dates as markers. Use it as navigational context only—co-occurrence is not causation.