What do you know about the second half of the 20 century and its effect on literature?

There will be many answers to this particular question.  I would submit that one of the impacts of the second half of the 20th Century on literature was to increase more voices in the lexicon, within the discourse.  In literature, the growth of the narratives of African- Americans, the voices of Latinos, as well as the understanding of gay/ lesbian/ transgendered experiences, and the greater comprehension of women's issues emerged out of the second half of the 20th century.  Thinkers like Toni Morrison, August Wilson, Lorraine Hansberry, as well as Cesar Chavez, Richard Rodriguez, Anita Desai, Salman Rushdie, Arundhati Roy, or Joyce Carol Oates, Gloria Steinem, in addition to Tony Kushner, Eric Schlosser, or Rachel Carson all sought to increase more voices and newer experiences into the discussion of what it means to be included.  This growth of vocality helps to mark the impact the second half of the 20th century had on literature.   Another reality that had a profound effect on literature was the impact of technology on both literature and its production.  The emergence of books on taps, electronic mediums, and the online bookstore helped to change how books were written, read, and distributed.