A series that looks at the causes of large scale emigration from a particular country or region, the economic and political factors for people leaving and where they went to. It also explores the social and cultural consequences that the arrival of these immigrants has had on the countries they made their homes, looking at the problems the new arrivals encountered and ultimately celebrating the multiracial and multicultural societies they helped to create. From Africa considers how so many Africans were forced to leave their home countries through the slave trade, how they eventually won their freedom and the cultural consequence on both Africa and the countries that became their homes. From Ireland looks at the reasons why so many people left Ireland to start new lives elsewhere, a process which began in 18th century but grew hugely as a result of the Potato Famine in 19th century.