Cranio-facial trauma diagnosis using paleo-proteotyping of a blood sample from Robespierre (1794).

Tradition has it that the politician Robespierre, a famous tribune of the French Revolution, was lying, wounded in the face by a bullet from a firearm, on an 18th century desk, and left a trace of blood there, before being guillotined the next day (1794). This piece of furniture is now kept in the National Archives (Paris, France). A paleo-proteomic study was carried out on several brown stains on the leather of the desk, which confirmed the human blood nature of the sample, but also identified the protein signature of different craniofacial organs.

Metabolomic analysis of 18-19 pipes from the kingdom of Dahomey (actual Benin) indicates smoking of caffeine-bearing plants.

Increasingly, molecular chemistry and pharmacology are complementing classical studies in the field of archaeology. In this case, we present the results of the chemical study of pipe residues found in the context of an archaeological mission (AROMA mission: Archaeology of the Exercise of Royal and Magico-Religious Power) in the royal palaces of Abomey (Benin), dating from the 17th-19th century. The search for many products was carried out (mainly tobacco, cannabis) but surprisingly only highlighted the presence of caffeine residues.