Retrograde in History · 1977

Torrijos–Carter Treaties

On September 7, 1977, Mercury was mid-loop — retrograde in Virgo, tracing backward through 10°27′ of the sign.

WhenSeptember 7, 1977♍︎Virgo 10°27′Rx windowAug 22 – Sep 14, 1977
Mercury retrograde♍︎VirgoWikipedia
The record

treaties signed by the United States and Panama in 1977

Born inside this same window
More from this window · Aug 22 – Sep 14, 1977

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