Benjamin Franklin was famous for his great accomplishments. In 1752, he proved that lightning and electricity were the same thing althogh, it could be positively or negatively charged.Franklin proved that by doing the kite expirement. Franklin tied a key to the end of a kite and proved that when lightning struck the kite, the electricity was transferred to the key. When he touched the key, it shocked him. Today, this proves that clouds can give off static discharges and lightning is electricty.