The World Factbook Facts provides you to read and learn many different information about all countries in the world(about 250 countries!). You can read about:

– Geography
– People
– Government
– Economy
– Communications
– Transportation
– Military
– Transnational Issues

Also u can find maps and see countries comparison by many parameters.

In additional you can see:

– Definitions and Notes
– Abbreviations
– International organizations and groups
– Selected international environmental agreements

All information by CIA World Factbook. Data by october 2011.
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