5000 years ago, ancient Egyptians write pictures called hieroglyphics. The people who wrote where called scribes. It took the scribes a lot time to write down the hieroglyphics . So instead they invented the Demotic script .
With the demotic script the scribes found it better then the other way. 200 years later, a stone was found. The stone had a short story on it. It was written in Greek, Demotic and Hieroglyphics. They named the stone rosetta stone.