A Trusted Friend in a Complicated World

Catherine Holecko

Catherine Holecko is a contributor to RD.com’s Advice and Culture sections, where she writes about parenting, relationships, and pets. You can also read her work online at Highlights, Parents, and Verywell, and listen to her daily podcast at parentingroundabout.com. Catherine earned her BA in English at the University of Pennsylvania.
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21 Fascinating Facts Behind the Mystery of Pi

Find out why this ancient mathematical constant gets an annual celebration—one that's growing every year!