Codex Leicester
E126483
The Codex Leicester is a famous scientific notebook by Leonardo da Vinci, containing his observations and theories on topics such as astronomy, geology, hydrodynamics, and the properties of water.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Codex Leicester canonical | 6 |
| Leicester Codex | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1033262 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Codex Leicester Context triple: [Leonardo da Vinci, wrote, Codex Leicester]
-
A.
Codex Atlanticus
The Codex Atlanticus is a vast collection of Leonardo da Vinci’s notebooks, sketches, and writings covering subjects from art and anatomy to engineering and scientific inventions.
-
B.
Codex Boturini
Codex Boturini is a pre-Hispanic Aztec pictorial manuscript that chronicles the Mexica migration and the legendary origins of Tenochtitlan.
-
C.
Codex Alexandrinus
Codex Alexandrinus is a 5th-century Greek manuscript of the Bible, notable as one of the oldest and most complete surviving copies of both the Old and New Testaments.
-
D.
Nowell Codex
The Nowell Codex is the late 10th–early 11th century Old English manuscript best known for preserving the only surviving copy of the epic poem Beowulf, along with several other important prose and poetic texts.
-
E.
Codex Vaticanus
Codex Vaticanus is a 4th-century Greek biblical manuscript held in the Vatican Library and regarded as one of the oldest and most important witnesses to the text of the Bible.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Codex Leicester Target entity description: The Codex Leicester is a famous scientific notebook by Leonardo da Vinci, containing his observations and theories on topics such as astronomy, geology, hydrodynamics, and the properties of water.
-
A.
Codex Atlanticus
The Codex Atlanticus is a vast collection of Leonardo da Vinci’s notebooks, sketches, and writings covering subjects from art and anatomy to engineering and scientific inventions.
-
B.
Codex Boturini
Codex Boturini is a pre-Hispanic Aztec pictorial manuscript that chronicles the Mexica migration and the legendary origins of Tenochtitlan.
-
C.
Codex Alexandrinus
Codex Alexandrinus is a 5th-century Greek manuscript of the Bible, notable as one of the oldest and most complete surviving copies of both the Old and New Testaments.
-
D.
Nowell Codex
The Nowell Codex is the late 10th–early 11th century Old English manuscript best known for preserving the only surviving copy of the epic poem Beowulf, along with several other important prose and poetic texts.
-
E.
Codex Vaticanus
Codex Vaticanus is a 4th-century Greek biblical manuscript held in the Vatican Library and regarded as one of the oldest and most important witnesses to the text of the Bible.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
manuscript
ⓘ
scientific notebook ⓘ |
| alsoKnownAs |
Codex Hammer
ⓘ
Leicester Codex ⓘ
linked to:
Codex Leicester
|
| author | Leonardo da Vinci ⓘ |
| contains |
astronomical notes
ⓘ
drawings and diagrams ⓘ geological notes ⓘ hydrodynamics studies ⓘ scientific observations ⓘ studies on properties of water ⓘ |
| creator | Leonardo da Vinci ⓘ |
| currentOwner | Bill Gates ⓘ |
| dateWritten | circa 1506–1510 ⓘ |
| discusses |
erosion
ⓘ
fossil formation ⓘ lunar light and Earthshine ⓘ movement of water ⓘ origin of springs and rivers ⓘ sedimentation ⓘ structure of the Moon ⓘ |
| exhibitedAt |
British Library
ⓘ
Minneapolis Institute of Art ⓘ Museo Galileo, Florence ⓘ Museum of Fine Arts, Boston ⓘ Phoenix Art Museum ⓘ Seattle Art Museum ⓘ |
| folioFormat | double-page sheets folded and written on both sides ⓘ |
| language | Italian ⓘ |
| location | private collection of Bill Gates ⓘ |
| material | paper ⓘ |
| namedAfter | Thomas Coke, 1st Earl of Leicester ⓘ |
| numberOfPages | 72 ⓘ |
| partOf |
Leonardo da Vinci’s scientific notebooks corpus
ⓘ
linked to:
Leonardo da Vinci notebooks
|
| previousOwner |
Armand Hammer
ⓘ
Earl of Leicester family ⓘ |
| purchasedBy | Bill Gates ⓘ |
| purchasePrice | 30.8 million US dollars ⓘ |
| purchaseYear | 1994 ⓘ |
| record | most expensive manuscript ever sold at auction at time of sale ⓘ |
| script | mirror writing ⓘ |
| topic |
astronomy
ⓘ
cosmology ⓘ geology ⓘ hydrodynamics ⓘ light and optics ⓘ paleontology ⓘ properties of water ⓘ |
| writingDirection | right-to-left ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Codex Leicester Description of subject: The Codex Leicester is a famous scientific notebook by Leonardo da Vinci, containing his observations and theories on topics such as astronomy, geology, hydrodynamics, and the properties of water.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Codex Leicester
linked to: Codex Leicester