Retrograde in History · 1939

Einstein–Szilárd letter

On August 2, 1939, Mercury was mid-loop — retrograde in Leo, tracing backward through 22°50′ of the sign. The dates are computed from the real ephemeris; the cosmic verdict is offered in good fun.

WhenAugust 2, 1939♌︎Leo 22°50′Rx windowJul 27 – Aug 20, 1939
Mercury retrograde♌︎LeoWikipedia
The record

letter by Leó Szilárd and Albert Einstein to US President Roosevelt in August 1939

Born inside this same window

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