40 
Holidays. Paydays. Your birthday. They’re all important in their own special ways. But which day of the year is the most important? This handy calendar visualization from xkcd reveals all.
The rankings are based on Google NGrams searches, which tell you how often given words or phrases are used in English-language books over a set period of time. In this case, since 2000. The big winner—if you can call it that—here is, understandably, Sept. 11th, and the first days of months are surprisingly popular as well.
As for the rest of the year, well, it’s fun to search around for yourself. And I’ll also leave it to you to figure out why July 11th gets no love. [xkcd]
All-You-Can-Eat Breakfast Is Your "Because Breakfast Is the Most Important Meal" Deal of the Day
What Exactly Is a Year and How Is It Measured?
The Global Arms Trade, Visualised
“In this case, since 200″ either you are missing a zero or they went back a lot further than I thought possible.
Right you are.
Morning Kat, Bit early for you to be about. Early Meeting?
The poor rankings for December 24th and 25th, and also February 14th, suggest that this chart is useless, since it doesn’t take the names of immovable feast days into significance.
It’s only looking for [Month][Day] or [Day][Month] so “Christmas Day” or “Valentines Day” don’t score. “September 11th” is the only commemorative date in the English Language that I can think of where the name is the date, although as the chart shows lot’s of people refer to American Independence days as “4th July”.