1640: The First English Revolution
John Lilburne - calling for a spiritual revolution in England about 350 years before Russell Brand...
Russell Brand may have played his part in helping the word 'revolution' return to a degree of fashionability recently, but even in sleepy England revolutionary ideas have not simply been widely circulated long before him, but have actually been put into practice. That Norah Carlin's pamphlet on 1640, The First English Revolution (1983) is now online is therefore most timely - for those wanting more on the historiography of revolution in England, see her earlier analysis of Marxism and the English Civil War.
Edited to add: The John Lilburne 400 anniversary conference