Jazz originated in the late 19th and early 20th centuries in the southern United States, particularly in New Orleans. It emerged from a blend of African American musical traditions, including blues and ragtime, and incorporated elements of European music. Early jazz musicians, such as Louis Armstrong and Duke Ellington, played a crucial role in shaping the genre's distinctive sound. Throughout the 20th century, jazz evolved into various styles, including bebop, cool jazz, and free jazz. Each style introduced new techniques and improvisational elements, reflecting the cultural changes of the time. Notable figures like Charlie Parker and Miles Davis pushed the boundaries of jazz, making it a significant part of American music history.