why was the discovery of the rosetta stone important

Question

Before the Rosetta Stone was found in 1799, no one could read ancient Egyptian hieroglyphics. But the Rosetta Stone had the same document in Greek and demotic. Scholars could understand the Greek writing, so were able to finally figure out what the hieroglyphics said.

Check these sites for more information.

http://www.ancientegypt.co.uk/writing/rosetta.html

http://www.thebritishmuseum.ac.uk/compass/ixbin/goto?id=OBJ67