The origins of the Federation are in the value to students training for ordained ministry of encountering others from different denominations or traditions within a denomination. This has been expanded more recently to include opportunities for encounter with those of different faiths. It has also broadened out over the decades to encompass students who are training for lay ministry or simply to deepen their own understanding and faith. In all these respects, it is important not only to have courses which are intellectually stimulating but also to experience worship which reflects that diversity and to participate in the community life of Houses and of the Federation as a whole. There is, for example, ‘Fed Worship’ every fortnight which brings together several hundred students and staff in services led by the different members of the Federation. There are social events and there is social action. Outside formal classes for courses, there are shared public lectures and seminars. For example, in this academic year, a Catholic priest and scholar from the USA, Professor Stephen Bevans gave a public lecture to the Federation on mission and recently in the wake of the Paris attacks, there was a packed lecture-room for a panel discussion between Lord (Rowan) Williams, President of Magdalene College, Dr Ed Kessler, the Director of the Woolf Institute and Dr Atif Imtiaz, Principal of the Cambridge Muslim College.