tavis: why does the "i have a dream" speecin doeenre? of th is a rhetorical, and re important t summer of 1963 was a critical moment in history of the vil rights moveme. iwas not t culmination cam somewhat lat, but was a critical momt in the sense thating was coming off areat victory, although a difcult, contentious victory i birmingham. demonstrationserepreading across the south, as many as 1000 difrent demonsttions were ned by t fbi in the mohs following biingham. t was the centennial of the emancipation pclamation, and it creathe opportunity for ng to galvanize the movement, to build on the victory in birmingham, to suggest that it was not a local mter specific to t cell. itas a natnal matter that concerns the rigs of not just african-americans but all americans. the moment was signicant. rhetorically, the answers that absenthe last 11 minutes of the speech, which were improsed, in which king departed from hiprepared text, we wouldemember the speech as significant speech, in part because of the succe of the march itself and because o