Translator's Note -- Acknowledgements -- Introduction: The Dispute About the "Correct" History -- I. First Attempts at Resolving the Conflict -- II. The Azhar Reform and Shiism at the Beginning of the Twentieth Century -- III. A Controversial Correspondence (1911/36) -- IV. Caliphate and Ecumene (1924-1939) -- The abolition of the caliphate -- Jerusalem 1931 and its aftermath -- The involvement of the Azhar -- V. The Institutionalisation of Ecumenical Thinking -- Precursors -- Foundation and structure of the Jamā'at al-taqrīb -- Publishing and editorial activity -- VI. The Scholarly Network of the Taqrīb Movement (1947-1960) -- Sunnis -- Shiites -- VII. Scope and Limits of the Ecumenical Debate -- On the uses and disadvantages of history for ecumenical thinking -- bi-llatī hiya ahsan? Standardized arguments and stereotypes -- VIII. Polemics, Rapprochement and Revolutionary Politics (1952-1957) -- The Azhar and the Revolution -- Muhibb al-Dīn al-Khatīb and the Azhar journal -- The integration of the taqrīb society into politics -- IX. Triumph and Failure of Ecumenical Thinking (1958-1961) -- Theology and politics: Mahmūd Shaltūt's "fatwā" of 1959 -- Politics and theology: Egypt Iraq and Iran 1958-1960 -- The polemic reloaded -- X. From Rapprochement to Restraint (1962-1979) -- Epilogue: Continuing Rapprochement into the Twenty-first Century? -- Abbreviations -- Bibliography -- Index.