The First Resonance Meter Standard

Guild laboratories agreed on a reproducible scale for comparing Resonant activity across instruments and cities.

What happened

The standard did not explain Resonance; it allowed distant laboratories to agree that the same thing had happened.

Outcome

Resonance became measurable enough to regulate, insure and weaponise.

Timeline role

This entry demonstrates a milestone with standard importance, exact certainty and month date precision.

Its super-timeline behaviour is explicitly set to include.