Five times in the last 40 years, the working class has posed a radical alternative to the status quo. In each of these cases, the actions of workers themselves were the driving force of struggles with revolutionary potential. Each episode offers an inspiring glimpse of the way in which workers rise to the challenge of fighting for a better world-and pose their own alternative to the system. Although none of these struggles ultimately achieved their goals, they were revolutionary rehearsals' that hold important lessons about the struggle for modern socialism.'