Pleiades is a community-built gazetteer and graph of ancient places. It publishes authoritative information about ancient places and spaces, providing unique services for finding, displaying, and reusing that information under open license. It publishes not just for individual human users, but also for search engines and for the widening array of computational research and visualization tools that support humanities teaching and research.

The GeoNames geographical database is available for download free of charge under a creative commons attribution license. It contains over 25 million geographical names and consists of over 11 million unique features whereof 4.8 million populated places and 13 million alternate names. All features are categorized into one out of nine feature classes and further subcategorized into one out of 645 feature codes.

Example queries can be found here:

ISO codes for the countries of the world.

The data collected in this dataset is collected by the Netherlands Enterprise Agency and has been made available to the public on the web, and can be found here. In the data that has been made available for this specific dataset contains information about countries around the globe with the objectives of these country monitors:

  • To provide companies with a first impression of doing businesses in a country;
  • To provide sources and contacts for more detailed information;
  • To sketch opportunities as to how companies can be further supported when going into business in a country.

ISO 3166 is a standard published by the International Organization for Standardization (ISO) that defines codes for the names of countries, dependent territories, special areas of geographical interest, and their principal subdivisions (e.g., provinces or states).

This dataset contains IDs for countries, based on the following ISO 3166 identifiers:

  • the 2-letter code
  • the 3-letter code
  • the numeric code