Human beings, each considered as a single actor within society
  • Activists - Individuals who take direct action to achieve a social or political end
  • Adams, Charles - Attorney, tax historian and author
  • Adams, John - Second President of the United States
  • Adams, Samuel - American revolutionary leader, organizer of the Boston Tea Party
  • Aristotle - Greek philosopher, tutor of young Alexander the Great
  • Armentano, Dominick T. - Economics professor (emeritus) at the University of Hartford
  • Authors - Fiction and non-fiction writers of books, stories and other literature
  • Authors, Science Fiction - Writers of fictional accounts with scientific or pseudo-scientific bases
  • Ayau, Manuel - Founder of the Universidad Francisco MarroquĂ­n, Guatemala