Today, in America, the date is 10/24/26. It lacks much significance, until your realise it is the very last Pythagorean Day we may ever experience.
A Pythagorean Day is one where you can take the date numbers and turn them into the theorem. In this instance, 10^2 + 24^2 = 26^2.
There are 12 Pythagorean Days a century, and this is the last one until March 4th, 2105.
Enjoy it!