Taking into consideration that Hughes wrote during the Harlem Renaissance (a racial-conflict and racial-pride centered movement) to highlight the problems and importance of African-American people of the era, we can infer that, by <em>daybreak</em>, he is making a metaphor to compare the hopeful future he aims for with the break of the morning. He goes on to say that, when he becomes a composer, he will write songs that will touch everyone and will create unity to see the daybreak in Alabama.
in June 1846, the Senate, preoccupied with war against Mexico, quickly approved the Oregon Treaty with Britain, setting the boundary at the 49th parallel.