Definition
In Spanish law, *ocasion* means accident — an unforeseen event or occurrence giving rise to legal consequences, particularly in the context of liability or harm not attributable to deliberate act. The term appears in the historic Spanish legal code Las Partidas and in early American treatises drawing on Spanish civil law.
The concept broadly corresponds to what Anglo-American common law would treat under accident, fortuitous event, or unintended tort — distinguishing harm that results from chance or mischance from harm resulting from willful conduct or negligence.
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Common Confusion
*Ocasion* should not be conflated with the English word "occasion" (meaning a time, event, or opportunity), even though the words are cognates. In the legal context, *ocasion* carries the specific technical sense of *accident* — an unintended, unforeseen occurrence — which is not a meaning the English "occasion" ordinarily carries. Researchers encountering the term in Spanish-law documents or early American territorial records should read it as a term of art, not as a general reference to an event or circumstance.
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Why It Matters in Research
*Ocasion* is primarily a term for researchers working in Spanish colonial law, early American territorial law, or the civil law traditions that shaped states once under Spanish jurisdiction — particularly Texas, California, New Mexico, Arizona, Louisiana, and Florida.
**Traps in historical sources.** Because the word resembles the English "occasion," it is easy to misread in bilingual or translated documents from the Spanish colonial period. A document that discusses liability arising from an *ocasion* is not merely describing the circumstances of an event — it is invoking a specific legal category of accidental occurrence with defined consequences under Spanish law.
**Corpus connections.** The term surfaces in treatises that bridge Spanish and Anglo-American law, including White's *New Recopilación* — one of the key secondary sources for understanding Spanish law as it applied in early American territories. Researchers consulting Las Partidas (the thirteenth-century Castilian legal code that remained influential through the Spanish colonial period) will encounter *ocasion* in the context of rules governing harm, fault, and liability. Understanding the term is essential to correctly interpreting the legal standard being applied.
**Jurisdictional and temporal scope.** The relevance of *ocasion* as a term of art is concentrated in the period before and immediately after American acquisition of former Spanish territories, when Spanish civil law still governed property, inheritance, and tort-like claims. As Anglo-American common law displaced Spanish law in most of these jurisdictions, the term receded from active legal use, though it may still appear in historical title chains, land grant documents, and early territorial court records.
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Historical Dictionary Support
Both editions of Black's Law Dictionary — the first and second — give identical, terse entries: "In Spanish law. Accident." Both cite the same two sources: Las Partidas, pt. 3, tit. 32, l. 21, and White's *New Recopilación*, b. 2, tit. 9, c. 2.
The consistency across editions reflects the term's narrow, stable meaning rather than any evolution in legal usage. Neither edition elaborates on how *ocasion* interacted with related Spanish-law concepts such as *culpa* (fault) or *caso fortuito* (force majeure), which is a meaningful gap. A researcher relying solely on Black's will know what the word means but not how it functioned within the broader liability framework of Las Partidas or how Spanish courts distinguished accidental harm from negligent or willful harm.
White's *New Recopilación* remains the primary secondary source for unpacking that context for English-language researchers.
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Jurisdictional Note
*Ocasion* as a term of art is relevant only in jurisdictions that were formerly under Spanish legal authority and in the periods when Spanish civil law remained operative — primarily pre-statehood and early statehood periods in Texas, California, New Mexico, Florida, and Louisiana. It has no operative role in contemporary American law.
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