Chronoscope record
Archive Record
Historical record
Archive case · today
Chronoscope
Where does this image show, and when?
Read the traces. Place the subject on the map, estimate its year, then open the historical record.
Selected records
From the archive
The public index
Archive
Revisit a dated challenge, open a curated collection, or practise with cases drawn from the published record.
On this device
Your Record
Published records
Browse the Collection
Dated editions
Past Challenges
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Curator selections
Collections
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Open study
Practice the published archive
A fresh selection for observation without affecting a dated challenge.
No location selected
Estimated date
1900 CECommon Era
The record
Your Reading of the Past
0 / 25,000
The whole reading
Your journey through space and time
Each numbered pair joins your placement to the historical record. Select a round below to examine it again.
Your Readings
A note for the curator
What did you notice?
Share a thought about the cases, difficulty, sources, or interface. Notes are private and appear only at the curator's desk.
Archive contribution
Contribute to the Archive
Found an image that would make a compelling Chronoscope case? Send it to the archive for verification of place, date, source, and rights.
Submission Receipt
Your proposal is sent privately to the curator. If the archive cannot be reached, a copyable backup will appear here instead.
About Chronoscope
Read the traces.
Chronoscope is a historical map game about reading the traces left inside old images. Each round asks a simple question: where does this image show, and when?
Observation
The answer lies not in memorization, but in observation: architecture, clothing, roads, signs, terrain, technology, and the quiet details of daily life.
Public History
The project is built as an experiment in public history, visual reasoning, and geographical imagination. Submissions require verification before they can enter the game.
A Student Project
Hi! I'm a high-school student with a liking for history and geography, and I love playing Geoguessr. This website is an attempt for me to combine these interests, and to dabble a bit in public and digital history. I intentionally added public submission to this archive so that it can hopefully grow in size and scale to better educate people who visit this site and have fun!
The project has been built with substantial AI assistance, and I know that some parts may still feel noticeably machine-made or unfinished. I apologize for those rough edges and am continuing to refine the research, writing, and experience. Constructive suggestions are warmly welcomed and appreciated. Please also share chronoscope.world with anyone who might enjoy this kind of game.
Read how Chronoscope verifies dates, locations, provenance, and reuse rights.
Editorial method
How the record is made.
Chronoscope treats every playable image as both a challenge and an archival claim. Publication requires evidence for what the image shows, where it belongs on the map, when it was made or depicts, and how it may be displayed.
Place
Scored cases use a defensible point: a camera position, event site, named landmark, or short street segment. A city or region alone is not treated as precise evidence. For representational art, the pin marks the documented subject rather than an invented viewpoint.
Time
The answer year follows the most relevant documented date: exposure, depicted event, or artwork creation. Catalogue uncertainty remains visible in the displayed date range; Chronoscope does not silently turn an approximate or disputed date into certainty.
Sources
Museum, library, archive, monument, and government records are preferred. Secondary sources may corroborate coordinates or context, but should not replace the originating collection record when one is available.
Rights
Every record carries a rights or reuse note. Public-domain and open licences are preferred; attribution and source links remain attached to the record even when the image itself is freely reusable.
Review
Community and research-assistant proposals enter a private queue. Nothing becomes playable automatically: the curator may edit, reject, or publish only after checking image identity, place, date, context, and rights.
Uncertainty & Corrections
Hoaxes, contested claims, and uncertain identifications are labelled as such rather than presented as settled fact. Better evidence may lead to a revised pin, date, title, or historical record.
Chronoscope is an evolving public-history project. A published record is a documented reading of the evidence, not a claim that historical knowledge can never change.