Chapter structure
Each city begins with one question, then moves through geography, turning points, urban systems, representative evidence and contemporary life. Cross-city routes compare how shared forces produce different outcomes.
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Editorial policy
We treat a city as a relationship among geography, institutions, migration, technology and daily life—not a checklist of attractions.
Source standard
We prioritize UNESCO bodies, public records and gazetteers, museums, archives and academic institutions. Promotional material may provide leads but does not replace historical evidence.
Fact and interpretation
Verifiable fact, scholarly interpretation and our editorial framing should remain distinct. Contested subjects are not reduced to a single conclusion without context.
Translation and tools
Chinese and English share one factual framework; literal translation does not replace interpretation. Automated tools may assist organization, translation and formatting, while pages are checked against listed sources.
Revision
City pages display a review date. We revise for errors, authoritative updates and important gaps, and welcome reader feedback supported by reliable sources.
Advertising independence
Advertising and analytics do not determine city selection, sources, conclusions or recommendation order.