Wow! I didn't know that!
New (to us) knowledge about the world doesn't have to be life-changing or profound. It has only to remind us that some great number of people around the world are involved in things important to them and that we knew nothing about it.
I came across Tuvan throat singing completely by accident when searching a library catalogue for "language poetry." One result was for a movie called Genghis Blues (1999)-
I knew nothing about Tuva, Tuvans, or throat singing - or Paul Pena for that matter. Imagine, a whole country, a people, a way of life, all unknown to me.
handle poisonous snakes as part of their regular worship services. I had no idea that such a thing existed until I taught an essay in an anthology by Dennis Covington, an excerpt from his book Salvation on Sand Mountain: Snake Handling and Redemption in Southern Appalachia.
It's pretty humbling to find traditions, rituals, whole ways of living that are here in this world right now and were completely unknown to me. Whenever I'm feeling very right or full of myself, I remember just how enormous my ignorance is.