How do childrens rocking chairs work?

It is said that childrens rocking chairs were first invented by Benjamin Franklin by adding a rocker to a standard chair. The production of these childrens rocking chairs started in the early nineteenth century. The childrens rocking chairs consist of two rockers attached to the bottom of their legs. These rockers are basically two curved pieces of wood that allow the chair to connect to the floor at only two points. The person sitting can rock back and forth by slowly pushing back on the chair with his or her feet. The wooden childrens rocking chairs are very comfortable and soothing because of their gentle motion. Your kids can just sit on them and rock back without actually using much force. The rocking chairs for kids are very popular and parents use them for their children to keep them entertained.