🛠️ Invention or technique

Written law code

Código legal escrito

Date
c. 2100 BCE · confidence high
Place
Ur (Ur-Nammu, c. 2100 BCE) and Babylon / Sippar (Hammurabi, c. 1750 BCE), Iraq
Credited to
Ur-Nammu of Ur; Lipit-Ishtar; Hammurabi of Babylon
People
👤 Lipit-Ishtar
Field
Communication

⚠️ Disputed: the sources disagree.

What it is

Collection of case-type rulings ('if a man... then...') promulgated by the king and inscribed on public stelae, preceded by a prologue justifying his authority as guarantor of justice. Ur-Nammu's code is the oldest; Hammurabi's, the most complete.

Urukagina's 'reforms' (c. 2350 BCE) are the oldest legal edict, but not a systematic code. Whether the codes were applicable law or monuments of royal propaganda is debated: the courts rarely cite them.

What it led to

  • Law known in advance and applied equally, rather than left to the whim of the judge or the powerful
  • The state as guarantor of justice, not only as tax collector and warrior
  • Monetary tariffs for compensation and punishment, the basis of the silver economy
  • Law as a written discipline, taught in schools and compared across kingdoms (Hittite, Assyrian and biblical laws)
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Sources✓ verified 2026-09-25