activism before social media: 'In December 1982, 30,000 women responded to a chain letter sent out and joined hands around the base at the Embrace the Base event.'

h/t to Jeremy Corbyn for the Greenham Common shout-out in his recent speech, in which he thoroughly roasted Richard Benyon: https://www.youtube.com/watch?v=fQGz4YZ2pqw&t=235

https://en.wikipedia.org/wiki/Greenham_Common_Women's_Peace_Camp