The programme looks at what happened in Derry that day from a range of different perspectives.

It describes local events within the context of protests and demonstrations around the world and looks at how social and other changes affected some of those involved.

The documentary, also describes how Stormont reacted to the events unfolding on the streets of Northern Ireland and police reaction to the demonstration in Derry.

Beginning at 9.00pm, it includes contributions from American civil rights activists, including the Rev Jesse Jackson and Alain Geismar, who was involved in the French demonstrations of 1968.

It makes extensive use of archive recordings and includes previously unseen amateur film footage of events in Derry.

Those taking part reflect on their involvement in the emerging civil rights movement and the legacies of that period for life in contemporary Northern Ireland.

Local contributors who give their views on the reasons why the civil rights movement started here and its aims include Finbar O’Doherty, who was a member of the Derry Housing Association, Eamon Melaugh, who belonged to the Derry Labour Party, and civil rights activist, Eamonn McCann.

The programme also features contributions from Sir Kenneth Bloomfield, William Houston, who worked for Londonderry Corporation and retired RUC officer, Jim McMullan.

The documentary is on BBC1.