Retrograde in History · 2015

2015 Canadian Grand Prix

On June 7, 2015, Mercury was mid-loop — retrograde in Gemini, tracing backward through 5°16′ of the sign.

WhenJune 7, 2015♊︎Gemini 5°16′Rx windowMay 19 – Jun 11, 2015
Mercury retrograde♊︎GeminiWikipedia
The record

Formula One motor race held in 2015

More from this window · May 19 – Jun 11, 2015

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