• 5 College Library
• 3 Verona Shelving Facility
• 2 MERIT Library

• 6 Civilization
• 5 Politics and government
• 4 Social life and customs
• 3 Antiquities
• 2 Alaric I, King of the Visigoths, -410
• 2 Ancient influences
• 2 Assassins
• 2 Benedict, Saint, Abbot of Monte Cassino
• 2 Charlemagne, Emperor, 742-814
• 2 Charles Martel, approximately 688-741
• 2 Civil engineering
• 2 Civilization, Ancient
• 2 Civilization, Modern
• 2 Clovis, King of the Franks, approximately 466-511
• 2 Design and construction
• 2 Mafia
• 2 Middle Ages
• 2 Organized crime
• 2 Popular culture
• 2 Presidents
• 2 Scopes, John Thomas
• 2 Theodora, Empress, consort of Justinian I, Emperor of the East, -548
• 2 War and society
• 2 Washington, George, 1732-1799

• 42 New Video Group
• 33 History Channel (Television network)
• 29 Arts and Entertainment Network
• 4 Cassel, Chris
• 4 Hearst Entertainment (Firm)
• 4 Kralyevich Productions
• 4 Perkins, Jack, 1933-2019
• 3 CBS News
• 3 Greystone Communications
• 3 Herrmann, Edward, 1943-2014
• 3 Markham, Monte
• 3 Towers Productions, Inc
• 3 Wallace, Mike, 1918-2012
• 2 Actuality Productions
• 2 Daniels, Jeff, 1955-
• 2 Epstein, Michael
• 2 Filmroos Inc
• 2 Friedman, Adam
• 2 Graves, Peter, 1926-2010
• 2 History (Television network)
• 2 Jaffe Productions
• 2 Motor Car Company
• 2 Muzzey, Kerry
• 2 Nash, Bruce M

• 15 United States
• 4 Rome
• 3 Europe
• 3 Italy
• 2 China
• 2 Egypt
• 2 England
• 2 Germany
• 2 Japan
• 2 Russia
• 2 Troy (Extinct city)
• 1 Argentina
• 1 Beijing (China)
• 1 Cannae (Extinct city)
• 1 Earth (Planet)
• 1 Grand Coulee Dam
• 1 Grand Coulee Dam (Wash.)
• 1 Great Britain
• 1 Greece
• 1 Hiroshima-shi
• 1 Hiroshima-shi (Japan)
• 1 India
• 1 Iran
• 1 Las Vegas
• 1 Las Vegas (Nev.)

Limit year range