AQA 7042 · C3.02 - The 100-year context, no-duplication rule and 200-year chronology test
A century in a title is not enough: the period must help answer the historical question. Learn to separate meaningful context, content duplication and whole-course chronology, then use those checks without mistaking a preliminary screen for approval.
Three linked gates
The three requirements answer different questions. Passing one never compensates for failing another.
| Gate | The question to ask | What does not prove compliance |
|---|---|---|
| Approximately 100 years | Is the proposed issue genuinely placed in a historically meaningful context of about a century? | Printing two dates roughly 100 years apart while investigating only a brief episode |
| No duplication | Is the proposed Component 3 issue distinct from the specified content actually studied in Components 1 and 2? | Choosing different wording, a different question stem, or the same material under a new title |
| At least 200 years overall | What chronological range do Components 1, 2 and 3 cover when placed on one course chronology? | Adding the three component durations as though overlapping years counted twice |
These are compliance conditions, not optional improvements. A centre records the examined options, their dates, and the proposed Component 3 question for formal checking. If the three subject requirements are not met, the entry is invalid and no A-level result can be issued.
A meaningful century, not a decorative one
“Approximately” does not mean “exactly”. Historical developments do not arrange themselves into neat 100-year packages. AQA’s 2025 NEA examiner report says a context can be 80–120 years where the opening and closing dates are relevant to the specific question. This is conditional guidance, not automatic approval of every period inside that range: the dates and context must still do meaningful historical work. The current NEA guidance warns that a context significantly shorter or longer than 100 years raises comparability concerns; a centre should ask its NEA Adviser when the period’s appropriateness is uncertain.
The more important test is whether the context does real analytical work. A development-over-time enquiry should examine relevant change and continuity across the period. A narrower issue can also work, but only if the wider century is necessary for judging its significance, causes, consequences, or place within a longer development. The opening date, closing date, and issue must therefore fit one another historically.
Worked screen: dates and actual analysis
Compare these fictional process records:
- Record A: a local-institutions issue is tracked from an inherited arrangement in 1760 through several phases of reform to a settlement in 1860. The whole period is built into the intended comparison. This is a plausible 100-year screen, though it still needs formal approval.
- Record B: a six-month crisis in 1860 is the entire intended focus, but 1760 is added to the title and would appear only in a brief opening paragraph. The century is decorative rather than central, so the date width alone does not make it compliant.
Test content, not just the calendar
The non-duplication rule is about content. A screen must compare the proposed issue with the exact events, issues, developments, people, and themes specified for the learner's selected Component 1 and Component 2 options. Comparing only option titles is too shallow, while comparing only date ranges answers the wrong question.
Chronological overlap can be permissible. The same or a similar period does not automatically duplicate content if the proposed issue is genuinely distinct and the combined course still reaches the 200-year range. The reverse is also important: changing a few dates or rephrasing a title does not remove duplication when the historical substance remains the same.
Use this fictional content record only to practise the distinction:
| Record | Dates and content | Preliminary non-duplication decision |
|---|---|---|
| Component 1 | Political authority and constitutional reform in Republic North, 1750–1850 | Examined content to protect from duplication |
| Component 2 | War and diplomacy in Union South, 1914–1945 | Examined content to protect from duplication |
| Proposal X | Political authority and constitutional reform in Republic North, 1745–1845 | Fails: the changed dates do not hide substantial content duplication |
| Proposal Y | Municipal sanitation in City East, 1745–1845 | No duplication is visible in this supplied record; chronological overlap with Component 1 is not itself a failure |
Proposal Y has passed only a preliminary content screen. Its meaningful 100-year context, full content boundaries, evidence base, combined chronology, and formal approval have not yet been established.
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