The Rosetta Stone is one of the most popular artefacts in the British Museum. Containing a decree written in Greek, Demotic and hieroglyphics, it proved to be the key to deciphering Egyptian hieroglyphics. This concise study traces the history of `the most famous piece of rock in the world' to become a modern icon and tells the story of the race to use it to decipher Egypt's ancient script by Jean-François Champollion and Thomas Young. Also includes a translation of the text.