Today is February 7, 2018. If you write this the American way, with the month first, and leave out the 20, this gives 2/7/18. And 2, 7, 1 and 8 are the first four digits of one of the most important numbers in mathematics,
This is why today we celebrate day.
To help get the party started, here are some of our favourite Plus articles about . But before you delve into them, why not find your birthday within the decimal expansion of with this little gadget produced by the wonderful people of Imaginary. Enjoy!