<human>:  Why did the author use the name ‘Da Vinci’ in the book ‘The Da Vinci Code’?
<bot>: Leonardo da Vinci was an Italian artist, sculptor, painter, architect, and scientist. He was born in 1452 and died in 1519. His most famous works include the Mona Lisa and The Last Supper. The Da Vinci Code is a novel written by Dan Brown in 2003. The title refers to the code that is hidden in the artwork of the Mona Lisa. The code was first discovered in 1911, but the true meaning of the code remained a mystery until Brown published his novel in 2003.