How was the rosetta stone used?

a. to decipher egyptian hieroglyphics
b. to communicate with aliens
c. to decode enemy communications
d. to understand the epic of gilgamesh

  A. To decipher Egyptian hieroglyphics.

Explanation:

  It was discovered in 1799 and held three versions of a decree issued at Memphis, Egypt. While the top and middle texts are written in Ancient Egyptian using hieroglyphic and demotic scripts. The last part is written in Ancient Greek, a language more known than the Egyptian. The Rosetta Stone became a key element to deciphering Egyptian hieroglyphics and therefore opened the window to ancient Egyptian history.

  I hope this answer helps you.

ok so like i went to wiki and looked up the (constitution x new "hammystan")and it showed me the picture it highlights new hampshire and says first and second session and than it says that they hit up the u.s and was like "ey dude that paper u sent us was adopted it bro thx" xd syays it all on wiki/the pic

i dont really like reading so i guess other people might not like reading either so   imma put the answer in bold italics

most likely you should find things like facts and important information to you understand. i hope this .