Pi Day?

I’ve seen multiple claims on the Internet that yesterday was Pi day. Was there a memo that I didn’t get? Who decided it was pi day?

I do remember quite clearly when I was in elementary school and the teacher announced that it was impossible to write pi as a fraction. I was shocked.

I was going to agitate for other deserving constants, such as Euler’s constant should get their own day, but honestly, I love every real number equally. They all deserve a day of their own.