Trans-cultural diffusion
In cultural anthropology in addition to cultural geography, cultural diffusion, as conceptualized by Leo Frobenius in his 1897/98 publication Der westafrikanische Kulturkreis, is a spread of cultural items—such as ideas, styles, religions, technologies, languages—between individuals, if within a single culture or from one culture to another. this is the distinct from the diffusion of innovations within a specific culture. Examples of diffusion add the spread of the war chariot together with iron smelting in ancient times, and the usage of automobiles and Western business suits in the 20th century.