A massive migration refers to a significant movement of people from one region or country to another within a short period. In the context of the mid-19th century, it typically involved a large number of individuals leaving their home country and settling in a new place.
Related terms
Push Factors: Push factors are circumstances or conditions that force individuals or groups to leave their homes and migrate elsewhere. For example, in Ireland during the mid-19th century, push factors included poverty, famine, and limited economic opportunities.
Pull Factors: Pull factors are attractions or incentives that draw individuals or groups to move to particular destinations. In the case of Irish migration in the mid-19th century, pull factors included better job prospects, religious freedom, and hopes for a better life in countries like the United States.
Diaspora: Diaspora refers to the dispersion or scattering of people from their original homeland (or ethnic group) across different regions or countries. The Irish diaspora formed as a result of this massive migration event when Irish people settled in various parts of the world.