英语翻译Jean champollion (1790~1832) was very good at languages

英语翻译
Jean champollion (1790~1832) was very good at languages .He learnt twelve languages in his life .When he was eighteen ,he began teaching history at university .He was younger than many of his students
Jean was very interested in ancient Egypt and in 1821 he began to study the Rosetta stone .A group of soldiers found this stone at Rosetta when Jean was still a young boy .it was under the sand for hundreds of years before they dug it up .There was a lot of strange writing on the stone .the writing was in three languages .one of the languages was ancient Egyptian .No one could read it at that time .but jean worked out its secret .
Ancient egyptian was not a language with letters and words like english .it was full of sings .According to many experts ,these signs showed things and ideas .Jean did not completely agree .He thought that some of them showed sounds .He found fifteen signs of this kind in his study of the Rosetta stone .Today ,it is possible to understand ancient Egyptian from 4,000 years ago because of Jean’s discovery .
其中JEAN是人物.