Retrograde in History · 1990

Treaty on the Final Settlement with Respect to Germany

On September 12, 1990, Mercury was mid-loop — retrograde in Virgo, tracing backward through 11°27′ of the sign.

WhenSeptember 12, 1990♍︎Virgo 11°27′Rx windowAug 25 – Sep 17, 1990
Mercury retrograde♍︎VirgoWikipedia
The record

1990 treaty making Germany fully independent

Born inside this same window
More from this window · Aug 25 – Sep 17, 1990

Coincidence, not causation: the date is real and ephemeris-based, but a retrograde window is observed, never blamed. For entertainment, not navigation.