Preserve a date as written before normalising it. Calendar, language and year conventions may explain differences between documents.
The method, step by step
- Transcribe words, numbers and abbreviations. Separate event, drafting, reporting and registration dates; differences need not be errors.
- Identify place and dating system from the register and archival introduction. Do not choose a calendar solely from the name’s language.
- For conversion use a documented table for the place and period. Retain original, converted date and tool reference; mark uncertain readings.
- A stated age often gives a birth range, not an exact day. Log the calculation and compare records without erasing discrepancies.
Record in your research log
- Written date
- calendar
- event
- documented conversion
- uncertainty.
Frequently asked questions
Should a historical date be replaced by a modern date?
Retain the original wording and add documented normalisation separately. State the calendar and uncertain readings.
Sources & references
- FranceArchives ↗ (Resource review date : )
- FamilySearch Research Wiki ↗ (Resource review date : )