The Cordage Institute is a group of people who really like ropes and strings of all kinds. They want to make sure that all the ropes and strings that people use are safe and strong so that nobody gets hurt. They work together to make rules and tests to make sure that ropes and strings are made the right way and are strong enough to hold things like buildings and bridges. They also help people choose the right rope or string for their job, whether it's for tying boats to a dock or making a swing in the backyard. So, when you see ropes or strings, you can thank the Cordage Institute for making sure that they are safe and strong.