Definition
XXII is the Roman numeral designation for the number twenty-two. In legal contexts, it appears primarily as a structural or organizational marker rather than as a substantive legal term. It is used to identify:
1. Constitutional amendments. The Twenty-Second Amendment to the United States Constitution, ratified in 1951, limits a person to two terms as President of the United States. A person who has been elected President twice, or who has served more than two years of another person's term and been elected once, is ineligible for further election to the presidency.
2. Numbered provisions in legal instruments. XXII commonly appears as a section, article, clause, or exhibit identifier in contracts, codes, statutes, constitutions, treaties, rules of court, and other formal documents. Its meaning in any given instrument is purely locational.
3. Canon law divisions. In the Roman Catholic canonical tradition, numbered divisions in Roman numerals appear throughout the Corpus Juris Canonici and related collections, including the Decretum Gratiani and the Decretales. Causa XXII, for example, is a recognized division within the Decretum. The number itself carries no independent legal significance; it is the content of the division that matters.
Why It Matters in Research
Researchers encountering XXII in a primary source must first determine what kind of document they are reading. The same notation means entirely different things depending on context:
In constitutional research, "Amendment XXII" and "the Twenty-Second Amendment" are interchangeable references. Researchers should be aware that early American constitutional scholarship may refer to proposed but unratified amendments by number, creating potential for confusion where a numbering differs from the final ratified sequence.
In contract and transactional documents, Article XXII or Section XXII is simply a locator. Roman numeral formatting was historically preferred in formal instruments and is still common in sophisticated commercial agreements, though Arabic numerals have largely replaced Roman numerals in modern statutory drafting. A researcher reading a nineteenth-century statute or code may encounter extensive Roman numeral section numbering that does not correspond to any modern codification structure.
In canon law research, Roman numerals pervade the organizational structure of the Corpus Juris Canonici and the collections that comprise it. The Decretum Gratiani is divided into Causae, Distinctions, and Questions, all numbered in Roman numerals in classical editions. Researchers working in pre-1917 canon law sources (before the first Code of Canon Law replaced the Corpus Juris Canonici) must be fluent in this numbering system to navigate the primary texts. Post-1983 canon law research uses Arabic numeral canons from the current Code.
In treaty and international law documents, Roman numerals mark articles and annexes. The source material above references a Fisheries Commission established under a numbered treaty article — a pattern common in nineteenth-century bilateral treaties where article numbers in Roman numerals were standard.
The practical trap: when searching digitized historical legal sources, Roman numerals are frequently misread by optical character recognition software. XXII may be rendered as "XX11," "XXll," "XXlI," or other corruptions. Researchers relying on full-text search in digitized collections should account for OCR error when searching for numbered provisions.
Historical Dictionary Support
None of the three source dictionaries — Rapalje & Lawrence, Burrill, or Bouvier — contain a substantive entry for XXII as a legal term. The source material provided reflects tangential appearances of Roman numeral notation in entries concerning the Corpus Juris Canonici (Rapalje & Lawrence and Burrill) and treaty provisions (Bouvier), confirming that XXII functions in these sources purely as an organizational marker within larger legal texts.
Burrill's extended treatment of the Extravagantes and the Decretales illustrates the layered numbering systems of canonical collections, where Roman numerals identified not only major divisions but sub-collections and individual constitutions. Bouvier's reference to a treaty article and the Halifax Fisheries Commission (arising under the Treaty of Washington, 1871) is characteristic of his dictionary's engagement with international instruments, where numbered articles in Roman numerals governed specific obligations between states.
No historical dictionary entry treats XXII as a term of art with independent legal meaning. This is consistent across all three sources and reflects the term's character as notation rather than doctrine.