Eng311: The art of crime

Today i'll tell you about the Mona Lisa.
The Mona Lisa was painted by Leanardo Da Vinci and is probably the world's most famous painting. You can see it in the Lourre in Paris.But are you sure it was painted by Leanorda Da Vinci?
In all painting was stolen from thw museum. A man whose name is Vinsenzo Perugia, stole the paintingand tried to deal it for 500000 lire. But he was arrested by police.In fact, the theft was planned by someone called Eduardo de Valfrerno,. He asked Perugia to steal the Mona Lisa. Then 6 brilliant copies were made and sold to rich collectors. Each collector thought his copy waas the original, and when the painting was found, valfierno told them that it was only a copy.
And then the Mona Lisa was returned to the lourre. But are we sure that the painting really is the original. wwe don't know exactly really?