Okay, some holy cows can not be questioned, so we will respect the eternal bond between the stock market and the celestial solar calendar. (tenfactorialrocks.com)
As a country it would be impossible to get every single holiday on the calendar, especially when some of them do not correspond to the 365 day solar calendar, and I have no problem with having to deal with the de facto Christian calendar which has become the de facto secular calendar. (religion.blogs.cnn.com)