The 26th issue of *La Lettre du Collège de France* published on June 26, 2009, highlights several distinctions and invited professors. The issue features the awarding of the 2009 CNRS Gold Medal to Professor Serge Haroche, a specialist in atomic physics and quantum optics, for his foundational work in cavity quantum electrodynamics. Professor Haroche leads the Simple System Electrodynamics Group at the Kastler Brossel laboratory. Additionally, the issue includes an invited lecture by Michael Wörrelle, a renowned scholar of ancient history and epigraphy, who delivered a series of four lectures on Aizanoi, a city in Western Asia Minor. Wörrelle, a former director of the Kommission für Alte Geschichte und Epigraphik in Munich, has made significant contributions to the study of Greek institutions and has been instrumental in promoting the center's international reputation. His research focuses on the history and epigraphy of Greek cities in Asia Minor, particularly Pergame, Ephesus, Miletus, and Aizanoi.The 26th issue of *La Lettre du Collège de France* published on June 26, 2009, highlights several distinctions and invited professors. The issue features the awarding of the 2009 CNRS Gold Medal to Professor Serge Haroche, a specialist in atomic physics and quantum optics, for his foundational work in cavity quantum electrodynamics. Professor Haroche leads the Simple System Electrodynamics Group at the Kastler Brossel laboratory. Additionally, the issue includes an invited lecture by Michael Wörrelle, a renowned scholar of ancient history and epigraphy, who delivered a series of four lectures on Aizanoi, a city in Western Asia Minor. Wörrelle, a former director of the Kommission für Alte Geschichte und Epigraphik in Munich, has made significant contributions to the study of Greek institutions and has been instrumental in promoting the center's international reputation. His research focuses on the history and epigraphy of Greek cities in Asia Minor, particularly Pergame, Ephesus, Miletus, and Aizanoi.