For anyone interested in getting some background on the revolt

Melvyn Bragg's 'Radical Lives: John Ball'
https://www.youtube.com/watch?v=w4TAd8Cwjcg

The late Paul Foot's wonderful speech at the 1981 600th anniversary.
https://www.youtube.com/watch?v=vS-8eqYlU7k

'In Our Time' Radio 4.
http://www.bbc.co.uk/programmes/p0038x8s