What was the name of the man who could decipher the writing on the object found at the Nile River?

Jean Francois-French scholar deciphered the Rosetta Stone - which is a black asphalt stone with inscriptions in hieroglyphs, Demotic Egyptian, and Greek.What was the name of the man who could decipher the writing on the object found at the Nile River?
Zahi Hawass would be only one of many people who could decipher ';writing'; on objects found in Eqypt. The Nile River is 6690km long passing through nine different countries; namely Tanzania, Kenya, Zaire, Burundi, Rwanda, Ethiopia, Uganda, the Sudan and Egypt to the Mediterranean Sea. Please refine your question with when the object was found, where it was found and what type of ';writing'; was on it.