When did you turn 21? In this ambitious video installation, Mats Staub explores how world history is mirrored in personal memories. From Germany to South Africa, Australia to Scotland, he interviewed more than 200 people from all age groups and backgrounds about their memories of the year they became an adult – then several months later, asks them to listen back to their words. With warmth, humour and poignancy, 21 is an urgent reminder that we have more in common than sets us apart.