Since people have owned land, surveying has been an essential profession. The earliest evidence of surveying, potentially going back to 11,000 years ago, is found at the Nabta Playa site in southern Egypt, related to the construction of large megalithic structures. 

Happy Pi Day! We hope you have the chance to enjoy the tasty kind of pie today – in the meantime, here’s a pi “appetizer”.

To a surveyor, pi is a key concept that undergirds everything, because surveying occurs on a sphere. Specifically, all boundaries must take into consideration the curve of the earth (and any distortions of that curve, as well as elevation).