http://copycateffect.blogspot.ca/2015/11/friday-13th-france-911.html
Surprisingly, it didn't happen on November 9th or on 11-11.
The attack zones weren't all in the 11th_arrondissement_of_Paris.
https://en.wikipedia.org/wiki/Arrondissements_of_Paris
"In 911, a group of Vikings led by Rollo attacked Paris before laying siege to Chartres."
https://en.wikipedia.org/wiki/Treaty_of_Saint-Clair-sur-Epte
Patterns of extreme violence, death & destruction seem to connect with certain numbers.
https://en.wikipedia.org/wiki/Siege_of_Chartres_(911)
https://en.wikipedia.org/wiki/Duchy_of_Normandy#Early_history Established in the year 911.
Then 1033 years after 911 was the Invasion_of_Normandy in 1944.
https://en.wikipedia.org/wiki/History_of_Normandy#Second_World_War
http://jfvrinfo.blogspot.ca/2015/11/the-omen-of-doom-wt1190f-on-friday-13th.html
http://jfvrinfo.blogspot.ca/2015/11/9-11-and-11-9.html