Moving to a new home in a different state, country or continent. (Emigration: Leaving one country to move to another. Also known as International Migration)
People migrating between the same country or region. Eg. London to Plymouth.
People that have descended from migrants. Such as children or grandchildren.
People that help them
Organisations that help migrants from other countries.
Generally refugees and displaced people due to conflicts in their country of origin. Can also be displaced due to natural or environmental disasters, chemical or nuclear disasters, famine or development projects.