Applied and Social Sciences magazines
- An Act Concerning the Attendance of Children at School
- An Act to Establish a Bureau for the Relief of Freedmen and Refugees
- An Opinion on Love Matches
- Anderson, Oskar N.
- Anderson, Perry
- Andrew Johnson Kicking Out the Freedmen's Bureau
- Anglo–American Society
- Angyal, Andras
- Anthropology, Biological
- Anthropology, British
- Anthropology, Linguistic
- Anthropology, Medical
- Anthropology, Public
- Anthropology, U.S.
- Anti-Chinese Political Cartoon
- Anticolonial Movements
- Antitrust Regulation
- Anti–Semitism
- Appropriations
- Aptitude Testing