25 April is Freedom Day in Portugal. Five decades ago on that date, flowers filled the streets of the capital Lisbon as a dictatorship was overthrown.Europe’s longest-surviving authoritarian regime was toppled in a day, with barely a drop of blood spilled.In 2010, Adelino Gomes told Louise Hidalgo what he witnessed of the Carnation Revolution.(Photo: A young boy hugs a soldier in the street. Credit: Jean-Claude Francolon/Gamma-Rapho/Getty Images)