World Book Encyclopedia Online. Encyclopedia of 1848 Revolutions - Articles about the people and ideas motivating the 1848 European revolutions.
Most articles have bibliographies.
Encyclopedia of Macedonian History 2000 - The program includes the History of Macedonia from the times of Phillip II of Macedon and Alexander the Great, to year 2000 and the last Presidential Elections in Macedonia. Encyclopedia of Medieval Studies - Short articles with links to other web resources about European history from the Roman empire to 1300. Encyclopedia of Roman Emperors - Short biographical essays of all the Roman emperors from the accession of the Emperor Augustus to the death of the Emperor Constantine XI Palaeologus. Also includes political and battle maps. Historical Eras and Countries - List of reference sites regarding historical periods and many different countries.