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Diary of Galileo Galilei.png
Diary of Galileo Galilei



Before 1642[1]


Galileo Galilei
Hector Barbossa
Carina Smyth


Map No Man Can Read
Trident of Poseidon

First appearance

Dead Men Tell No Tales

Latest appearance

Dead Men Tell No Tales

"This is the diary of Galileo Galilei. He's spent his life searching for the Trident. It's why he invented the spyglass, why astronomers spend their lives staring into the sky."
"So you're saying the Map No Man Can Read is hidden in the stars?"
"It was left to me by my father. He believed I could find what no man has ever found. I will not let him down. Soon, there will be a blood moon. Only then can the map be read and the Trident found.
Carina Smyth and Henry Turner[src]

The Diary of Galileo Galilei was a diary written by the 17th century Italian scientist Galileo Galilei. It contained clues to the Map No Man Can Read which would lead to the hidden location of the legendary treasure, the Trident of Poseidon. By 1751 the diary was in possession of Carina Smyth who decided to find the Trident and prove herself as a scientist.


Galileo's diary[]

"There are legends about an old book with a ruby on the cover and a cluster of five stars. The symbol of the map."
Dark-haired woman[src]

At some point during his life the Italian scientist Galileo Galilei learned that the Trident of the ancient sea god Poseidon was real. He decided to find the legendary weapon, eventually realizing that only the Map No Man Can Read, which was hidden in the stars, would lead to the Trident. To find the map he invented an instrument called the spyglass which he used to search the skies. All his efforts were carefully recorded in a diary which had a large ruby on the cover. Galileo spent his life searching for the Trident, but without success. He died without finding anything, leaving the diary behind.[2]

In Barbossa's possession[]

"Where did you get that from, missy? I know this book. Stolen from an Italian ship many years ago."
"Stolen? No, you must be mistaken."
"There was a ruby on the cover I would not soon forget.
Hector Barbossa and Carina Smyth[src]

At some point during the Age of Piracy the diary ended up on the Italian ship that was attacked and captured by pirates led by Hector Barbossa. Seeing the large ruby on the cover the pirate captain did not realize the significance of Galileo's diary, considering it only a valuable trinket. For some reason, he had the star constellation from the cover tattooed on his right arm.[2]

Shortly after the War Against Piracy[3] Barbossa fell in love with a young woman named Margaret Smyth and they had a baby girl. However, Margaret died shortly after the child's birth, leaving Barbossa a single father. Afraid that a pirate could not raise a child properly, Barbossa named the baby girl Carina, after the brightest star in the north, eventually leaving her on the steps of a children's home with a note that her mother died and that her name was Carina Smyth. He also left the diary with the girl as a token, hoping that the ruby on the cover would one day afford her some ease of life.[2] Its further fate is unknown.

Behind the scenes[]

"Galileo’s diary dates back to the first astronomer - Plato himself. The diary is full of celestial binomials - equations passed down through the centuries from scholar to scholar - the last being my father. None of them could figure it out."
Carina Smyth to Jack Sparrow[src] (screenplay draft)


The Pirates of the Caribbean wiki has a collection of images and media related to Diary of Galileo Galilei.

Notes and references[]

  1. The diary had to be written before Galileo Galilei's death in 1642.
  2. 2.0 2.1 2.2 Pirates of the Caribbean: Dead Men Tell No Tales
  3. According to Pirates of the Caribbean: Dead Men Tell No Tales Novelization Barbossa was "revoltingly entwined" with Margaret twenty years before the Quest for the Trident of Poseidon. The Dead Men Tell No Tales comic book adaptation sets the quest in 1751 while the other tie-in materials set the War against piracy in 1729.
  4. Dead Men Tell No Tales script by Jeff Nathanson, second draft, 5/6/2013
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