YOU SAID:

the spreading of people from a national group or culture to other areas

INTO JAPANESE

民族集団や文化から他の地域への人々の拡散

BACK INTO ENGLISH

The spread of people from ethnic groups and cultures to other regions

INTO JAPANESE

民族や文化の人々が他の地域に広がること

BACK INTO ENGLISH

The spread of people of different ethnicities and cultures to other regions

INTO JAPANESE

異民族や異文化の人々が他の地域に広がること

BACK INTO ENGLISH

The spread of people of different ethnicities and cultures to other regions