Sionaidh Douglas-Scott is Anniversary Chair in Law at Queen Mary University of London, formerly Professor of European and Human Rights Law, University of Oxford. Her past roles include Special Advisor, Scottish Parliament External & European Relations committee, 2015–2017; Major Leverhulme fellow, 2018–2021; LAPA fellow Princeton University, 2020–2021.

• Introduction; Part I. Five Case Studies of Acts of Union and Disunion: 1. Scotland; 2. Ireland; 3. Britain's loss of its North American colonies in the 18th century; 4. The constitutional status of the British empire and commonwealth; 5. Britain and Europe; Part II. Five Themes: 6. Sovereignty; 7. Unions and disunion; 8. Federalism, devolution and differentiation; 9. Democracy and referendums; 10. Human rights; Conclusion.

'… rich and detailed historical and comparative analysis of union and disunion in British constitutional history.' Oliver Garner, The Review of Democracy

Sionaidh Douglas-Scott is Anniversary Chair in Law at Queen Mary University of London, formerly Professor of European and Human Rights Law, University of Oxford. Her past roles include Special Advisor, Scottish Parliament External & European Relations committee, 2015–2017; Major Leverhulme fellow, 2018–2021; LAPA fellow Princeton University, 2020–2021.

• Introduction; Part I. Five Case Studies of Acts of Union and Disunion: 1. Scotland; 2. Ireland; 3. Britain's loss of its North American colonies in the 18th century; 4. The constitutional status of the British empire and commonwealth; 5. Britain and Europe; Part II. Five Themes: 6. Sovereignty; 7. Unions and disunion; 8. Federalism, devolution and differentiation; 9. Democracy and referendums; 10. Human rights; Conclusion.

'… rich and detailed historical and comparative analysis of union and disunion in British constitutional history.' Oliver Garner, The Review of Democracy

Sionaidh Douglas-Scott is Anniversary Chair in Law at Queen Mary University of London, formerly Professor of European and Human Rights Law, University of Oxford. Her past roles include Special Advisor, Scottish Parliament External & European Relations committee, 2015–2017; Major Leverhulme fellow, 2018–2021; LAPA fellow Princeton University, 2020–2021.

• Introduction; Part I. Five Case Studies of Acts of Union and Disunion: 1. Scotland; 2. Ireland; 3. Britain's loss of its North American colonies in the 18th century; 4. The constitutional status of the British empire and commonwealth; 5. Britain and Europe; Part II. Five Themes: 6. Sovereignty; 7. Unions and disunion; 8. Federalism, devolution and differentiation; 9. Democracy and referendums; 10. Human rights; Conclusion.

'… rich and detailed historical and comparative analysis of union and disunion in British constitutional history.' Oliver Garner, The Review of Democracy