She, who Barack Obama remembered as « a national treasure » the day after she died, has considerably marked the History of the United States through her commitments and the literary and cultural revolution she has initiated. For almost 50 years, being by turns a critic, a book editor, a college professor, a creative author of novels, poems and essays, Morrison claimed the invention of a black writing and brought the light on what was kept quiet, smothered, in the US history. She put words on and pointed out what was silenced and repressed: the Black history.