The first accounts I can remember happens when I was six years old, I was not started school yet, but was started in (after school care).
There was this boy who has rope and use it for different things, like using it as a lasso or the other thing, he tied it to his own feet and began to hose himself when he said "when other tries to lift you it's hard, but when you do it yourself it easy" and hang upsidedown
Some days after in the afternoon, when not many kids around, I remembering try it with my friend, I loop the rope around the swing set, been tied it to my feet , and began hosing myself up and I began to hang upsidedown.