Saturday was Pi Day. At least, it was in America, where the date was written backwards as 3/14. In Britain there will never be a pi day because pi = 3.1415926535… and there won’t be a 3rd day in a 14th month.
There was a π day last year too, but something different happened this year. There was more publicity and more media hype, and more T-shirts were sold. I suspect most of the reason for that was that it’s 2015, so the date wasn’t just 3/14, but 3/14/15 – the first 5 digits of pi. And there was an infinitesimally brief moment just after 9.26 and 53 seconds when Pi Instant occurred, all the way through to the end of its never-ending decimal places.
Or maybe the reason that Pi Day was bigger this year was that the country’s pie-lovers and pie-makers wanted more pie. Pi Day became the excuse for a Pie Party.