Thomas Albert Ashby personal website
British Academy JSPS Postdoctoral Fellow, University of Tokyo

Home
I am an intellectual historian and my main research focus is on early modern political thought, particularly English republicanism and its reception in continental, transatlantic, and global contexts. I also have interests in Enlightenment studies, the early English encounter with Sengoku and Edo Japan, the historiography of intellectual history, and political theory.
I am a JSPS Postdoctoral Fellow at the University of Tokyo, a role I began in June 2025. Alongside my research, I am an editor at the peer-reviewed journal Global Intellectual History and a co-organiser of the Association for Global Political Thought based at Harvard University and partner institutions.
I was awarded the degree of Doctor of Philosophy (Ph.D.) from the European University Institute in March 2024 for my doctoral thesis entitled ‘The Temporal Republic of Algernon Sidney’. During my doctorate I was supervised by Ann Thomson and my examiners were Hannah Dawson (King’s College London), Rachel Hammersley (Newcastle University), and Nicolas Guilhot (EUI).
I remained at the EUI as a Postdoctoral Visiting Fellow in 2024 and 2025, working on early modern Europe and Japan. In summer 2024 I was a Maddock Research Fellow at Marsh’s Library in Dublin, Ireland, where I researched the printing, translation, and circulation of English republican texts. Prior to this I was a Research Fellow at the Fondazione Luigi Einaudi (2022-2023) and a visiting researcher at the Fondazione Luigi Firpo, Centro di Studi sul Pensiero Politico (2021-2022). Prior to this I was also a visiting researcher at the Institute for History at Leiden University from August to December 2018.
From 2017 to 2020 I was co-convenor of the EUI Intellectual History Working Group, organising various conferences, workshops, and talks at the EUI, including the first EUI Graduate Conference in Intellectual History, a successful international series now in its fifth year.
I came to the EUI after completing an MA in the History of Political Thought and Intellectual History at the University of London, jointly administered by University College London (UCL) and Queen Mary University of London (QMUL). My MA dissertation was entitled ‘Thomas Hobbes, the Regicide, and Political Obligation’ and supervised by Quentin Skinner. Prior to my postgraduate studies I read History and Politics at Keble College, Oxford.