Vol. I · An editorial chart-room
Seven cycles,one axis.
Khaldun, Kondratiev, Huntington, Perez, Turchin, Dalio, Strauss-Howe — drawn over 1600–2050. Each a pure sinusoid pinned to one documented peak, with a paired empirical series for stress-testing.Seven theories of long-wave history on one axis. Tap a row to focus and calibrate.
Click a row to focus one cycle; drag the brush below to zoom in time.
The cycle curves are pure sinusoids from each theory's declared period and a single calibration date. The overlaid data series are the rawest available proxies we could source. See methods for provenance and caveats.