My favourite invented is the electricity It was invented in 1752 when Franklin made his famous experiment to show that lightning is a form of electricity He climbed a kite on a stormy day and tied a metal key to the rope of the kite to conduct electricity Electricity passed through the storm, the key drove her a shock. Although he didn’t hurt himself it was this that gave him the idea to continue investigation. Electricity wasn’t invented, but descovered, since it is a force of nature. However it must have been understood in order to use it as we do today. Franklin came to the conclusion that there were positive and negative charge and that electricity itself floated between them. He also believed that lightning was a form of electricity