Number Nerd Holidays
![Number Nerd Holidays](/images/eulers-number-t-shirt.png)
I’ve been pretty successful selling t-shirts on Amazon these past few months. I normally only sell one, maybe two shirts per order, but one particular order caught my eye. I sold eight of these Euler’s constant t-shirts on January 15th. Cool, easy money. When February 7th rolled around, Wikipedia shared on their Facebook page that it was Euler’s Constant Day.