
معرفی
Nicolas Roussellier serves as a Professor at Sciences Po's Centre for History (CHSP), specializing in political history with emphasis on constitutional transformations in French democracy. His work centers on the evolution of executive power from the 19th century through the Gaullist Republic and contemporary crises.
He graduated from École Normale Supérieure de Saint-Cloud, holds an agrégation in history, and completed doctoral and habilitation degrees. His academic foundation combines rigorous archival research with theoretical political analysis.
Roussellier's research critically examines democratic resilience during crises, executive-legislative dynamics, and ideological evolution within French socialism. His methodology bridges institutional history with intellectual currents, revealing how historical precedents shape modern governance. Key contributions include reinterpreting Third Republic parliamentarism and analyzing state-democracy tensions through events from WWI to the coronavirus pandemic.
Recent publications demonstrate consistent focus on French political development, particularly executive authority transformations and democratic theory. His work establishes historical parallels between crises while dissecting the state's evolving relationship with democratic institutions, connecting archival scholarship to urgent contemporary debates about governance legitimacy.
As a permanent faculty member of the Centre for History, he participates in interdisciplinary research networks including the Centre for History and Economics in Paris (CHEP), contributing to seminars on political history and digital archival methodologies. His editorial role with Vingtième Siècle journal further anchors him in France's premier historical scholarship community.





