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Doctrine

Equity (law)

Tort and Equity Doctrine
Origin Medieval period, English Court of Chancery, operating as a court by the 14th century

Equity is a distinct body of law within common law jurisdictions that supplements the ordinary rules of law, encompassing equitable doctrines, principles of good faith, interests arising from trusts, remedies such as injunctions, and long-standing maxims that remain in use today. The system developed in the English Court of Chancery during the medieval period, where the Lord Chancellor originally heard petitions from litigants who had no adequate remedy under the rigid procedures of the common law courts, and by the fourteenth century this had become a functioning court that addressed cases where strict common law rules produced unjust results. Equity and common law operated as separate court systems until the Judicature Acts of the late nineteenth century merged their institutional structure, while preserving equity's own doctrines and principles as a separate but complementary set of rules alongside the common law. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

Facts
Origin Period
Medieval period, English Court of Chancery, operating as a court by the 14th century 1
Core Principle
Equity prevents the law from adhering too rigidly to its own rules where they produce injustice 1
Origin Period
Origin Period (category)
Medieval / Pre-1500 1
Classification
Doctrine Category
Procedural Law 2
Connections

In Area Of Law

Procedural Law, Doctrines

Entity-backed identity for the doctrine category value this doctrine already carries as an enum fact, resolved to a doctrine entity by an explicit value-to-entity map (phase 3 bucket conversion, docs\design_entity_backed_browse_buckets_20260928.md). The enum fact itself stays on the entity unchanged.

In Legal System

Common Law, Legal Systems
Source Equity (law) (Wikipedia)
Sources
1. Equity (law) (Wikipedia)
  • Court of Chancery section
    By the 14th century, it appears that the Chancery was operating as a court
  • Theory and philosophy section
    is to prevent the law from adhering too rigidly to its own rules and principles when those rules and principles produce injustice
  • In Legal System: Common Law, Wikipedia lead sentence
    In law, particularly in common law jurisdictions, equity is the body of law that historically developed in the English Court of Chancery, which create
View the Source
2. Wikipedia: Equity (law)
the body of law that historically developed in the English Court of Chancery, distinct equitable doctrines, remedies (e.g. injunctions)View the Source
Frequently Asked Questions

Why do common law systems have a separate body of law called equity?

It supplements the rigid rules of common law where strict application would produce injustice.

Equity grew up because the ordinary common law courts were rigid. In medieval England the Lord Chancellor heard petitions from litigants who had no adequate remedy at common law, and by the 14th century the Court of Chancery was operating as a court. Its purpose, as the theory is usually put, is to prevent the law from adhering too rigidly to its own rules and principles when those rules and principles produce injustice. Equity and common law ran as separate court systems until the Judicature Acts of the late nineteenth century merged their institutions, while equity kept its own doctrines and remedies such as injunctions.
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