Marc Léopold Benjamin Bloch was a French historian. He was a founding member of the Annales School of French social history. Bloch specialised in medieval history and published widely on Medieval France over the course of his career. As an academic, he worked at the University of Strasbourg, the University of Paris, and the University of Montpellier.

The Annales school is a group of historians associated with a style of historiography developed by French historians in the 20th century to stress long-term social history. It is named after its scholarly journal Annales. Histoire, Sciences Sociales, which remains the main source of scholarship, along with many books and monographs. The school has been influential in setting the agenda for historiography in France and numerous other countries, especially regarding the use of social scientific methods by historians, emphasizing social and economic rather than political or diplomatic themes.