Final answer:
Hip hop originated in the Bronx in the mid-1970s, combining funk music with unique beats and lyrics. It spread through various diffusion processes to become a global phenomenon.
Step-by-step explanation:
Hip hop music originated in the South Bronx, a neighborhood in New York City, in the mid-1970s. It was created by residents of the Bronx who combined elements of funk music with beats and lyrics to create a new genre. The cultural hearth or source region of hip hop is the Bronx. It then spread through a variety of diffusion processes, including contagious diffusion to nearby locations, hierarchical diffusion to larger cities, and stimulus diffusion with modifications made by artists from other areas.