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---
license: gfdl
language:
- en
tags:
- wikidata
- cronotopia
- openstreetmap
pretty_name: Cronotopia
---
# Cronotopia
This repository provides the preprocessed data distributions for Cronotopia, a specialized engine for the visualization and analysis of historical geospatial data.
The primary artifact is a consolidated SQLite database containing both structured historical records and vector map tiles, optimized for deployment in environments requiring total offline autonomy.
## Resource Description
The hosted file, `cronotopia.db.gz`, is a compressed SQLite database. It serves as the unified data backend for the Cronotopia application, integrating the following components:
* **Historical Entities:** Records extracted from Wikidata, including temporal attributes (dates of birth, death, or occurrence) and geospatial coordinates.
* **Vector Tiles:** Map data stored in MVT (Mapbox Vector Tile) format within the `tiles` table, enabling local map rendering without external tile providers.
## Technical Specifications
| Attribute | Specification |
| :--- | :--- |
| **File Format** | SQLite 3 (Gzip compressed) |
| **Primary Data Source** | Wikidata (JSON Dumps) |
| **Map Source** | OpenStreetMap (via Protomaps/MVT) |
| **Temporal Range** | Variable (spanning ancient history to the contemporary era) |
## Implementation and Usage
To utilize this database with the Cronotopia server, follow these procedures:
### 1. Retrieval and Extraction
Download the artifact and decompress it using standard utilities:
```bash
wget https://huggingface.co/datasets/eja/cronotopia/resolve/main/cronotopia.db.gz
gunzip cronotopia.db.gz
```
### 2. Service Initialization
Execute the Cronotopia binary, directing it to the local SQLite file. This will initiate the API and the web interface.
```bash
./cronotopia --db cronotopia.db --web-host localhost --web-port 35248
```
The application will be served at `http://localhost:35248`.
For further technical documentation regarding the ingestion pipeline or server configuration, refer to the [official GitHub repository](https://github.com/eja/cronotopia). |