Contagious expansion diffusion involves the spread of culture through social interaction and proximity. Hierarchical expansion diffusion is the spread of culture from a dominant core to surrounding areas. Relocation diffusion occurs when people relocate and bring their culture with them, spreading it to a new area. The Maori Haka spread through New Zealand and internationally as the All Blacks rugby team performed it before matches, exposing more people to Maori culture through social interaction and the influence and relocation of All Blacks players.