Launched in Rostock in 2000, the series will continue next year with the 16th International Seminar on Supercentenarians, organized by the French Institute for Demographic Studies (INED). The event will be held at Campus Condorcetin Aubervilliers, France, on April 9-10, 2026.

To measure age-specific mortality risks at very old ages and to select the most suitable models for adjusting life tables, it is essential to collect and analyze international data on supercentenarians (individuals aged 110 and over) and semi-supercentenarians (those aged 105–109). This work entails two main challenges: increasing the number of observations at such exceptional ages, and rigorously verifying the accuracy of reported ages, which are often exaggerated, misreported, or even entirely fabricated. For the past two decades, an international group of researchers has addressed these challenges by developing the International Database on Longevity (IDL) and publishing numerous studies through the first 15 seminars. The 16th seminar now aims to broaden this collective effort by issuing a general call for papers open to all interested researchers.