In this April Books Special, we'll find out how the Oxford English Dictionary was crowdsourced from a surprising and diverse group of people from astronomers to murderers, with author Dr Sarah Ogilvie, Senior Research Fellow in Linguistics at the University of Oxford; we'll also explore one of the bloodiest periods in English history known as the Anarchy with author and historian Sharon Bennett Connolly; and discuss two centuries of Plantagenet history which included the murder of kings and a devastating pandemic, in the book 'Arise, England: Six Kings and the Making of the English State' with Dr Caroline Burt, medieval historian at the University of Cambridge, and Richard Partington, Fellow in History at St John's College, University of Cambridge.