Retrograde in History · 1759
Battle of the Plains of Abraham
On September 13, 1759, Mercury was mid-loop — retrograde in Libra, tracing backward through 2°42′ of the sign.
WhenSeptember 13, 1759♎︎Libra 2°42′Rx windowSep 6 – Sep 28, 1759
The record
On 13 September 1759, British and French forces clashed on the Promontory of Quebec with fewer than 10,000 troops, a decisive engagement that influenced the later creation of Canada.
Coincidence, not causation: the date is real and ephemeris-based, but a retrograde window is observed, never blamed. For entertainment, not navigation.