Possible Clues:

• Famous stone
• Mediterranean port near Alexandria
• Famous stone arranged in round
• Port east of Alexandria
• ___ Stone (relic inscribed with three languages in 196 B.C.)
• Stone providing key to deciphering Egyptian texts
• - Stone (hieroglyphics)
• The - Stone helped read Egyptian hieroglyphics
• Famous town on the Nile
• Almost witness soldiers retreating somewhere in Egypt