In the first of this three-part series, George Alagiah tells the story of romance in the First World War between female workers and foreign seamen.

In the second of this three-part series, George Alagiah tells the story of the GI babies labelled war casualties, the boom in mixed-race couples following mass migration and how Sixties trendsetters crossed the racial divide.

In the last of this three-part series, George Alagiah tells the story of couples facing violence on the streets during the 70s, how adoption became a battleground and how mixed race became one of Britain\'s fastest growing ethnic groups.