• 51 Liberty
• 47 History
• 28 Constitutional history
• 26 Constitutional law
• 26 United States Constitution
• 16 African Americans
• 11 Political activists
• 9 Race discrimination
• 8 Civil law
• 8 Political participation
• 8 Politics and government
• 8 Social aspects
• 7 Criminal law
• 7 Political planning
• 6 Public policy (Law)
• 6 Racism
• 6 Social policy
• 5 Civil rights movements
• 5 Equality
• 5 Sex discrimination
• 5 Social conditions
• 4 Mass media
• 4 Mass media and culture
• 4 Religious institutions

• 74 Films Media Group
• 73 Films for the Humanities & Sciences (Firm)
• 25 Cambridge Educational (Firm)
• 11 Public Broadcasting Service (U.S.)
• 7 ABC News Productions
• 3 Fred Friendly Seminars (Firm)
• 3 Infobase
• 3 MacNeil/Lehrer Productions
• 2 Odyssey Networks (Firm)
• 2 Team Sound & Vision Inc
• 1 Arts and Entertainment Network
• 1 BuzzTaxi Communications Inc
• 1 Canada. Dept. of Finance
• 1 Canadian Broadcasting Corporation
• 1 Davis, Ossie
• 1 Fred Friendly Seminars (Firm
• 1 ICY (Firm)
• 1 Intelligence² (U.S.)
• 1 International Center for G
• 1 Journeyman Pictures (Firm)
• 1 Juneteenth Productions
• 1 KCTS (Television station : Seattle, Wash.)
• 1 KTWU-TV (Television station : Topeka, Kan.)
• 1 Looks Distribution GmbH
• 1 Lorraine Civil Rights Museum

• 74 English

• 1 Alabama
• 1 Atlanta
• 1 Boston
• 1 Chicago
• 1 Chicago (Ill.)
• 1 Detroit (Mich.)
• 1 Florida
• 1 Georgia
• 1 Illinois
• 1 Massachusetts
• 1 Miami
• 1 Miami (Fla.)
• 1 Mississippi
• 1 Montgomery
• 1 Southern States

Limit year range