A day of celebration dedicated to the people who have shaped Demokritos journey over the past 65 years, to the research and flagship projects being carried out today, and to the directions the Centre is charting for the years ahead. From its earliest days, centred around the nuclear research reactor, to its present-day multidisciplinary and interdisciplinary identity, we will revisit the Centre’s history and discuss the future of research, technology and innovation in Greece.