What word describes what people do when they spread out and live in almost every land area of the world?

Exodus, the word describing a numerous amount of people disseminated throughout a large area or vicinity. This word is technically described as spread or the large scale emigration of a populace from a certain area of location - scattering. Usually this word is anciently described to the Israelites fled from Egypt under Moses and a book in the Bible as most dictionary would also define in addition.