@Powerful Pete 108255 wrote:
Well, in some cultures the 13th is a lucky number… it’s really the English speaking bits of the world that seem to have a major problem with Friday the 13th, I believe (someone will certainly correct me if I am wrong on this).
Correct, triskaidekaphobia is a western thing. Good read on it here: http://www.huffingtonpost.com/donna-henes/friday-13th_b_1418812.html .
Of course most of the participants, with the exception of Russia and Turkey, appear to be from the Western World: http://winterbiketoworkday.org/2015-participant-map/ . Although interesting footnote, there are some “winter” bike to work day participants from New Zealand, Australia, Argentina, etc, which are all on the other side of the equator.