README.md

metadata

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:

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.

./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.