Noticed on the singletrack calendar that March 17th, the note states ride a green bike. I took this to mean that we should do this to celebrate St. Patrick's day, the patron saint of Ireland. When I flipped the calendar over to April this morning expecting a similar note for April 23rd (something along the lines of ride a morris dancer), I was suprised to see no mention of St. George's day, flipped the calendar back to March and no mention of St. David's day. No mention of St. Andrew's day in November either (had to google that one).
It may well have been a coincidence that the ride green bike note was on the same square as Guiness day, but it makes me wonder is March 17th so widely known and celebrated due to Guiness marketing or is it that the English, Scottish and Welsh just don't feel the same way about their patron saints?