On Radio 4, the historian Sheila Rowbotham looks back on the first Women's Liberation conference. 15 minutes long. It's part of a series, other programmes on Pride, CT scans & Nixon:
www.bbc.co.uk/sounds/play/m0003tbv
I was 10 when the 1970s began so obviously my list of 1970s things is rather different. Enjoyed listening though.