BBC Radio 4 BBC Radio 4 - Archive on 4, Our Anniversary Obsession From book publishers to Radio 4 commissioners, why are we so interested in anniversaries? BBC Four - Black Nurses: The Women Who Saved the NHS How Caribbean and African women came to the UK to save the then ailing health service. BBC Radio 4 - Asquith’s Fight for Equality Oona King reveals how West Indian Asquith Xavier fought a colour bar at Euston station.