If you want to read about 3 times 11 in Harry Potter stuff its up to you, esoteric philosophers love numbers!
However Armistice day has three elevens finishing at 11th hour, of 11th day of 11th month 1918, adding up to 33, link below:-
If W.W.1. had finished on St. Georges day, in England there would have been questions!
If W.W.1. had finished on 4th July, there would have been questions in America!