Jazz and blues emerged from African American musical traditions in the late 19th and early 20th centuries. Influenced by African rhythms, work songs, and European music, these genres developed in the Deep South and New Orleans, reflecting the cultural diversity of their origins. Key figures like Louis Armstrong, Bessie Smith, and Robert Johnson shaped the sound and style of jazz and blues. Characterized by improvisation, syncopation, and emotive performances, these genres provided a means of expression for African Americans during times of segregation and discrimination.