Retrograde in History · 2011

2011 Chinese Grand Prix

On April 17, 2011, Mercury was mid-loop — retrograde in Aries, tracing backward through 14°21′ of the sign.

WhenApril 17, 2011♈︎Aries 14°21′Rx windowMar 30 – Apr 23, 2011
Mercury retrograde♈︎AriesWikipedia
The record

Formula One motor race held in 2011

More from this window · Mar 30 – Apr 23, 2011

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