In 1968, the world would be governed. It was the year in which the mobilizations against the Vietnam War, begun 13 years earlier, intensified. In May, in Paris, hundreds of students took to the streets with slogans as resounding as 'Be realistic, demand the impossible'. In Czechoslovakia, Soviet forces repressed an attempt at reform called the 'Prague Spring', which advocated 'socialism with a human face'. The United States, while witnessing the rise of the hippie movement, was dismayed by the assassinations of two defenders of the rights of the Black population, the Reverend Martin Luther King and the Democratic presidential candidate Robert Kennedy – the same tragic end had befallen his brother five years earlier, who had arrived in Mexico. He had machine-gunned university students who were demanding more democracy on the eve of the Olympic Games. At that sporting event, the anti-racist 'Black Power' movement was made visible by two African American athletes who accepted their medals raising a black glove and bowing their heads.