Retrograde in History · 1987
Black Monday
On October 19, 1987, Mercury was mid-loop — retrograde in Scorpio, tracing backward through 12°42′ of the sign.
WhenOctober 19, 1987♏︎Scorpio 12°42′Rx windowOct 16 – Nov 6, 1987
The record
world stock market crash of Monday, October 19, 1987
Born inside this same window
More from this window · Oct 16 – Nov 6, 1987
Coincidence, not causation: the date is real and ephemeris-based, but a retrograde window is observed, never blamed. For entertainment, not navigation.