Great Year & Civilization

A visual “Earth → Culture → Calendars → Now” dashboard. This is an exploration tool: it overlays geological anchors, civilization milestones, and symbolic “age” motifs onto a ~26,000-year precession wheel. The goal is orientation, not prediction.

Where are we in the cycle?

Precession “Great Year”
25,772 yrs
Axial wobble shifts equinoxes vs star background.
Obliquity
41,000 yrs
Tilt affects polar summer melt strength.
Eccentricity
100,000 yrs
Orbit shape modulates seasonal contrasts.
Phase dial (symbolic): 0% → 100% through a ~26k cycle
93.0%
23,968 years into the cycle
“Stacking score” (toy overlap)
0.00
Higher when multiple waves peak together (illustrative).

This page uses symbolic anchoring. If you want an astronomy-tight version later, we can add an epoch picker (e.g., “equinox in Aries / Pisces boundary definitions”) and show uncertainty bands.

Earth → Culture → Calendars (selected anchors)