Today, March 14 is a day to celebrate the number pi, the circle's circumference to its diameter --which is approximately 3.14. While it's unclear who actually invented pi, Welsh mathematician William Jones was the first to express pi as a ratio in 1707. But pies have been around long before that --approximately in 9500 BC.
So, let's celebrate this auspicious day with something that feeds our mind and body.
Here are 7 outrageously delicious pies to dish up for your favorite math geek -- or anyone else who likes pies.
1. No-bake Snickers Pie
![cd9baf45-](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2018/09/1200/675/snickers_pie.jpg?ve=1&tl=1)
Who doesn't love the perfect equation of Snickers and not having to slave over a hot stove?
2. Half-Moon Fried Apple Pies
![8d5ce7e9-](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2018/09/1200/675/moon_pie.jpg?ve=1&tl=1)
A half moon is kind of like a half circle, right?
3. Nutella Cookies and Cream Pie
![233d09c2-](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2018/09/1200/675/nutella_pie.jpg?ve=1&tl=1)
Cause I bet even William Jones loved Nutella.
4. Oreo Crusted Brownie Pie with Cream Cheese Icing
![3910a2db-](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2018/09/1200/675/oreo_crusted_pie.jpg?ve=1&tl=1)
Science has allowed for the creation of a robot that actually dunks your Oreos for you. But it's still fun to crush them up yourself.
5. Cranberry Apple Pie
![58d829b7-](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2018/09/1200/675/cranberry_pie.jpg?ve=1&tl=1)
A perfect balance of tart and sweet.
6. Blueberry Goat Cheese Pie
![94b056f8-](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2018/09/1200/675/blueberry_goatcheese.jpg?ve=1&tl=1)
Blueberries and goat cheese have infinite possibilities, but is best is pie.
7. Pecan Pie
![95e4ec36-](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2018/09/1200/675/pecan_pie.jpg?ve=1&tl=1)
It's delicious sweet. What's not to love.