- 10th scientific meeting: The multiple patterns of past. Investigations in cultural history and literary theory. (Aristotelian University of Thessaloniki, Department of Philology, Faculty of medieval and modern Greek studies, Thessaloniki 3-6 October 2002): “On the occasion of an utopian encounter. Towards the formulation of a historiographic program in history of science”.
- Patriarchal Academy of Constantinople: History and Contribution (Scientific Symposium organized by the Greek Society for the Study of Near East; Byzantine and Christian Museum of Athens, 30 November 2002): “The archives of Patriarchal Academy”.
- Philosophy, History and Philosophy of Science at the Periphery. A Greek-Turkish Symposium (Department of History and Philosophy of Science, Athens University and Department of Philosophy, Boğaziçi University. Athens 11-12 April 2003): “The Nature of Another Subject”.
- Libraries and Culture (A joint meeting of the Technological Educational Institute of Piraeus, National Technical University of Athens, Aegean University, and the Public Library of Hermoupolis. Hermoupolis, Syros 2-4 October 2003): “Digital Libraries and Historical Research: The projects Hellinomnimon and Anthemion”.
- Writing History. History of Historiography and History of Science: Fields of Dialogue (A joint meeting of the department of History and Philosophy of Science, Athens University and the department of History, Archeology, and Social Anthropology, University of Thessalia. Volos, 31 October to 2 November 2003): “Nature, Society, and Science: Against Dualism”.
- Byzantium-Venice-Modern Hellenism. A Wandering in the World of the Greek Scientific Thought (History of Science Programme of the National Hellenic Research Foundation, Greek Institute of Venice for Byzantine and post-Byzantine Studies, and Institute of Byzantine Research of the National Hellenic Research Foundation. Athens 7-8 November 2003): «Kyrillos Loukaris’ Pestifarae Questiones and the emergence of Theophilos Korydaleas’ philosophical program».
- History of Science Society, 2003 Annual Meeting (Cambridge, MA, 20-23 November 2003): “From Physis to Cosmos: A Step Towards the Geography of Nature”.
- Science and Technology in the European Periphery, 4th meeting: Traditions and Realities of National Historiographies of Science (History of Science Department, University of Aarhus, Sandbjerg Estate 2-6 June 2004): “Constructing Greece Embracing Europe”.
- Science in Europe / Europe in Science: 1500-2000 (International conference organized by the European Society for the History of Science (ESHS) and the Dutch Society for the History of Science, Medicine and Technology (Gewina). Maastricht, the Netherlands, 4-6 November 2004): “Periphery reassessed: Newtonianism in the Greek context”.
- Abdera 1st International Forum on the Philosophy and History of Natural Science (National and Kapodistrian University of Athens, National Technical University of Athens, and University of Pittsburgh. Abdera, 7-10 July 2005): “Newton in the periphery: ‘Standing on ye sholders of Giants’”.
- Orthodoxy, Nation and Ideology (Moraitis School, Athens, 7 September 2005): “Pious Science. Newton in the Orthodox Orient of the 18th century”.
- Lecture in the Society for the Study of Modern Helleninism / Mnimon journal (29 November 2006): “Origins of the historiography of modern Greek science”.