Up to the 11th hour of the 11th day of the 11th month 1918, the day was chosen and the hour was chosen for esoteric symbolism....in the last few hours of the First World War there were 11,000 casulties:-
The Last Day Of World War One by Michael Palin
What a loss due to esoteric secret societies, and Harry Potter/potty symbolism that needs to be transported back to the 1500's!!!!!