A two-minute visual history

A brief history
of legal clarity

How law grew hard to read, and how AI may help.

Law began as behaviour. It became writing. It became codes. It became too complex. It may now become clear again.

Follow the rule
The upper part of the Code of Hammurabi stela: a standing figure before a seated god, above dense cuneiform
Stone
The 1804 title page of the Code civil des Français
Paper
An IBM-style punched card, its holes spelling out a character set
Machine
One rule, three forms: carved in stone, printed in a code, punched into a card.
Photographs Rama · Imprimerie de la République · Gwern
Prehistoric hand paintings covering a cave wall at Cueva de las Manos

Cueva de las Manos · a wall of hands

Photograph Mariano · public domain

01

Behaviour

Before writing · prehistory to c. 3000 BCE

Before law was written, rules lived in behaviour.

Rules were carried by memory, habit, shame, fear, ritual and repetition. People knew what was expected long before it was put in words.

Then a rule was cut in stone
The upper part of the Code of Hammurabi stela: a standing figure before a seated god, above dense cuneiform

Babylon · around 1750 BCE

Photograph Rama · CC BY-SA 3.0 FR

02

Stone

Babylon · c. 1750 BCE

Writing made rules visible.

Once engraved, a rule could be seen by all. It outlasted memory, passed to the next generations and could be used outside the group.

IFa situation occurs THENa consequence follows
Explore the Hammurabi stela at the Louvre
Then the wall became the law
Blocks of the Gortyn law wall, closely carved with Greek letters

Gortyn · the law is the wall

Photograph Carole Raddato · CC BY-SA 2.0

03

City

Gortyn · 5th century BCE

Public law made rules common.

In Greek cities, law could be displayed, debated and connected to civic life. The rule was no longer only custom; it became a visible reference for the community.

Seen Shared Debated
See the Gortyn Law Code at Cornell
Then the rules went into four boxes
A page of the Corpus iuris civilis, its central text ringed by dense commentary

Rome · the text, ringed by commentary

Scan Battista Torri · CC0

04

System

Rome · c. 450 BCE to 530s CE

Roman law organized rules into a system.

Roman jurists sorted rules into lasting categories. Scattered rules gained an order that could be taught, interpreted and extended.

  • Persons
  • Things
  • Obligations
  • Actions
View a Corpus iuris civilis manuscript
Then one sentence covered every case
The 1804 title page of the Code civil des Français, lifted off its background

Paris · 1804 · the original edition

Photograph Imprimerie de la République · CC BY 2.0

05

Code

France · 1804

Codification showed the power of general rules.

A good article does not list every possible case. It states one clear rule that fits many cases. The Civil Code is a famous example.

« Tout fait quelconque de l’homme, qui cause à autrui un dommage, oblige celui par la faute duquel il est arrivé à le réparer. »

Civil Code, former Article 1382, now Article 1240
Read Article 1240 on Légifrance
But the shelves kept filling

The clarity crisis

The rule remained.
Its structure grew harder to see.

In many fields, texts multiplied, exceptions piled up and it became unclear who was responsible. More words did not always produce more certainty.

Library stacks crowded floor to ceiling with books, bundles and newspapers

More words, more shelves

Photograph Library of Congress · public domain

Now the rule passes through a machine
An IBM-style punched card, its holes spelling out a character set: a hole or no hole, nothing implied

A punched card · a hole, or no hole

Card by Gwern · public domain

06

Machine

Digital law and AI · 2000s to today

AI may help law become logical again.

Rules are moving into online forms, platforms and automated checks. This can make law easier to apply, if each condition and consequence is clear, visible and contestable.

The three steps a rule must pass

Better Rules

Clear. Logical. Applicable.

A disciplined sequence. Each step depends on the one before it.

  1. 1

    Clear

    Make every sentence understandable without changing its meaning.

  2. 2

    Logical

    Expose conditions, contradictions, overlaps and missing links.

  3. 3

    Applicable

    Test who must do what, when, how and with what consequence.

A small vocabulary

What do we mean by “law”?

Rule

A pattern or instruction of behaviour. It may be biological, social, moral, technical or legal.

Convention

A rule recognized by a group as a shared basis for action. It creates common expectations.

Law

The body of recognized rules that organize common life and can be applied, invoked, interpreted or enforced.

Embedded rule

A rule built into a system, object or interface so that the system itself guides, checks or enforces it.

Sources and limits

Markers, not a complete history.

This page follows one question: how did written rules become visible, structured and clear? Its photographs are historical markers and visual supports, not a complete reconstruction of legal history.