Contribute
Report an Error or Suggest Content
CMC relies on reader feedback to maintain accuracy and completeness. Whether you have spotted a factual error, a missing source, or a translation issue, please let us know through the channels below.
Choose a Report Type
A date, name, statistic, or event description that is factually incorrect.
Send email →Missing SourceAn important primary source or scholarly work that should be cited but is absent.
Send email →Translation IssueMistranslation, awkward phrasing, or terminology inconsistency between English and Chinese.
Send email →Suggest New ContentA significant historical event, figure, or document not yet covered by the archive.
Send email →Submission Guidelines
Include the URL of the event or figure page where the issue occurs so we can locate it quickly.
For factual corrections, please include a book title, article link, archive reference, or other verifiable source to support your claim.
CMC does not make value judgements on historical events. Submissions should address verifiable factual errors, not disagreements with a particular interpretive perspective.
We aim to reply within 5 working days with an update on the outcome. Critical errors will be corrected within 48 hours of confirmation.
Direct Contact
For other enquiries or if you are interested in contributing to content review, feel free to email directly:
[email protected]