Retrograde in History · 2010

Manila hostage crisis

On August 23, 2010, Mercury was mid-loop — retrograde in Virgo, tracing backward through 18°43′ of the sign.

WhenAugust 23, 2010♍︎Virgo 18°43′Rx windowAug 20 – Sep 12, 2010
Mercury retrograde♍︎VirgoWikipedia
The record

mass murder in Quirino Grandstand, Rizal Park, Manila, Philippines on August 23, 2010

More from this window · Aug 20 – Sep 12, 2010

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