Retrograde in History · 1770
Boston Massacre
On March 5, 1770, Mercury was mid-loop — retrograde in Aquarius, tracing backward through 28°21′ of the sign.
WhenMarch 5, 1770♒︎Aquarius 28°21′Rx windowFeb 15 – Mar 9, 1770
The record
On March 5, 1770, a confrontation known in Great Britain as the Incident on King Street took place in Boston during the American Revolution.
Coincidence, not causation: the date is real and ephemeris-based, but a retrograde window is observed, never blamed. For entertainment, not navigation.