Definition
PRECEDENT carries two distinct legal meanings that operate in entirely separate doctrinal contexts. Researchers must identify which sense is intended before applying any authority.
1. Judicial precedent (stare decisis sense). A prior court decision that establishes a legal rule or principle binding or persuasive authority in later cases involving materially similar facts or legal questions. A precedent is binding when issued by a court within the same judicial hierarchy and on point; it is persuasive when issued by a court outside the hierarchy or in an analogous but not identical context. The doctrine that courts should follow binding precedent is called stare decisis — the principle stands separately and should be consulted alongside this entry.
2. Condition precedent (contracts and property sense). An event or act that must occur or be performed before a legal obligation, right, or estate becomes operative. A condition precedent suspends the vesting or enforceability of a right until the specified condition is satisfied. Failure of the condition means the obligation or estate does not arise — not that it is excused after arising. This sense is foundational in contract law, property law, and procedure.
A third, narrower usage appears in older drafting practice: a precedent as a standard-form document or template for a legal instrument. This meaning is now largely archaic in American practice but persists in English legal usage.
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Common Language
Modern common usage (Wiktionary): Something that has happened before and can be used as an example or guide for similar situations in the future; a previous instance that may influence current decisions.
Historical common usage (Webster's 1913): "Something done or said that may serve as an example to authorize a subsequent act of the same kind." Also: an established custom or usage.
The ordinary-language meaning captures only the judicial precedent sense — prior example as guide. It entirely misses the condition precedent sense, in which precedent means a threshold trigger, not an example at all. A researcher encountering "precedent" in a contract or conveyance is not reading about stare decisis; they are reading about sequencing and conditionality. The two senses share etymology but share almost nothing functionally.
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Common Confusion
PRECEDENT vs. CONDITION PRECEDENT vs. CONDITION SUBSEQUENT. The unmodified word "precedent" in a contracts or property context almost always means condition precedent, but sloppy usage occasionally drops the modifier. A condition precedent must occur before a duty arises; a condition subsequent operates to extinguish a duty or divest an estate after it has already arisen. The distinction carries significant consequences for burden of proof and pleading: in contract actions, the party seeking to enforce typically bears the burden of showing a condition precedent was satisfied, while the party seeking to escape bears the burden of showing a condition subsequent occurred. Conflating the two inverts the analysis.
PRECEDENT vs. STARE DECISIS. Precedent names the prior decision itself; stare decisis names the doctrine requiring courts to follow it. Usage often blurs this — courts and practitioners speak of "following precedent" as a shorthand for applying stare decisis — but for analytical purposes the distinction matters, particularly when examining when and why courts may depart from prior decisions.
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Recognized Forms
/SUBTYPES
Binding precedent (mandatory precedent): A prior decision that a court is obligated to follow. Determined by the hierarchical relationship between the deciding court and the later court, and by whether the earlier decision was on the same legal question.
Persuasive precedent: A prior decision a court may consult and adopt but is not required to follow. Includes decisions from coordinate courts, other jurisdictions, dissenting opinions, and obiter dicta.
Condition precedent (contracts): An event that must occur before contractual duties are triggered or before a party's performance obligation arises.
Condition precedent (property): An event that must occur before a future interest vests or becomes possessory.
Procedural condition precedent: A required act — notice, demand, exhaustion of administrative remedies — that must be completed before a cause of action may be brought or maintained.
Drafting precedent (archaic/English): A model or template document used as the basis for drafting a new instrument.
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Why It Matters in Research
The dual meaning is the primary research trap. Legal databases index "condition precedent" as a compound term, but historical sources — especially older treatises, digests, and reports — often use "precedent" alone to mean condition precedent. A search for cases discussing "precedent" without the modifier will return an unmanageable mix of stare decisis and condition precedent authority. Filter accordingly.
In the corpus, the condition precedent sense surfaces heavily in Contracts and Property materials; the stare decisis sense dominates Common Law Procedure and Constitutional materials. These track different encyclopedia clusters, and researchers who pull only one thread risk missing the parallel literature entirely.
Historical precedent doctrine has evolved in ways that affect source reliability. Pre-Erie federal common law cases (pre-1938 U.S.) apply a federal general common law that no longer exists. Their treatment of precedent — both as doctrine and as applied rules — cannot be imported wholesale into post-Erie analysis without checking whether the underlying substantive rule survived the Erie transition. English cases in the corpus, particularly before the House of Lords' 1966 Practice Statement, treat binding precedent as near-absolute in a way that has no American equivalent. Flag this when using English authorities on questions of precedential weight.
Parol evidence and condition precedent intersect in a corpus cluster worth special attention (see Contracts § 41). The rule that oral testimony is admissible to show that a written contract was subject to an unwritten condition precedent to its taking effect at all — as distinct from varying its terms — is one of the recognized exceptions to the parol evidence rule. Historical sources treat this exception inconsistently, and some older authorities conflate the threshold-condition question with the term-variation question. The distinction determines whether evidence is admissible at all.
For the drafting-precedent sense: researchers using English practice guides or conveyancing materials in the corpus from the nineteenth or early twentieth century will encounter "precedents" as a term of art for form books and model documents. Do not read this as a reference to stare decisis.
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Historical Dictionary Support
Rapalje & Lawrence treat the condition precedent sense as the primary legal meaning, defining a condition precedent as one "which must be performed before the estate can vest, or before the other party is bound to perform his part of the agreement." The definition is functional and accurate, though it does not fully distinguish condition precedent from condition subsequent with the analytical precision later treatise writers developed.
On the stare decisis sense, Rapalje & Lawrence give less structural treatment — reflecting the state of doctrine in 1883, when the mechanics of binding versus persuasive precedent were less formally codified than they became in the twentieth century. The entry is useful for the common law baseline but should not be treated as a complete account of how precedent operates in modern hierarchical court systems.
The drafting-precedent meaning appears without fanfare in the historical dictionaries as an established secondary sense. It is worth noting because it explains why older English legal reference works carry titles like "Precedents in Conveyancing" — these are form books, not discussions of stare decisis.
What the historical dictionaries collectively underserve: the procedural dimension of condition precedent — notice requirements, demand requirements, and exhaustion doctrines as conditions precedent to suit — receives minimal treatment. This body of law is substantial in the corpus and must be approached through procedural treatises and statutory materials rather than through the general-definition dictionaries.
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Jurisdictional Note
The stare decisis force of precedent varies by system. Federal circuit courts treat panel decisions as binding on later panels absent en banc reconsideration. State court hierarchies vary. English courts operated under a strict self-binding rule until 1966; that constraint has no American parallel. Researchers applying English precedent doctrine to American questions must account for this structural difference.
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Encyclopedia Cross-Reference
Contracts § 45 — Interpretation: Conditions (Express, Implied, Constructive; Precedent, Concurrent, Subsequent)
Contracts § 41 — Interpretation: Exceptions to the Parol Evidence Rule (Fraud, Mistake, Condition Precedent)
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