. Soviet immediate success might be explained by the advent of the state-sponsored "full-time amateur athlete". The USSR entered teams of athletes who were all nominally students, soldiers, or working in a profession, but many of whom were in reality paid by the state to train on a full-time basis, hence violating amateur rules. Finland made a legend of an amiable Czechoslovak army lieutenant named Emil Zátopek, who was intent on improving on his single gold and silver medals from 1948. Having first won both the 10,000 and 5,000 meter races, he also entered the marathon, despite having never previously raced at that distance. Pacing himself by chatting with the other leaders, Zátopek led from about half way, slowly dropping the remaining contenders to win by two and a half minutes, and completed a trio of wins.
The 1956 Melbourne Games were largely successful, barring a water polo match between Hungary and the Soviet Union, which the Soviet invasion of Hungary caused to end as a pitched battle between the teams. Due to a foot-and-mouth disease outbreak in Britain at the time and the strict quarantine laws of Australia, the equestrian events were held in Stockholm.
At the 1960 Rome Games a young light-heavyweight boxer named Cassius Clay, later known as Muhammad Ali, arrived on the scene. Ali would later throw his gold medal away in disgust after being refused service in a whites-only restaurant in his home town of Louisville, Kentucky. He was awarded a new medal 36 years later at the 1996 Olympics in Atlanta. Other performers of note in 1960 included Wilma Rudolph, a gold medallist in the 100 meters, 200 meters and 4 × 100 meters relay events.
The 1964 Games held in Tokyo are notable for heralding the modern age of telecommunications. These games were the first to be broadcast worldwide on television, enabled by the recent advent of communication satellites. The 1964 Games were thus a turning point in the global visibility and popularity of the Olympics. Judo debuted as an official sport, and Dutch judoka Anton Geesink created quite a stir when he won the final of the open weight division, defeating Akio Kaminaga in front of his home crowd.
Performances at the 1968 Mexico City games were affected by the altitude of the host city. The 1968 Games also introduced the now-universal Fosbury flop, a technique which won American high jumper Dick Fosbury the gold medal. In the medal award ceremony for the men's 200 meter race, black American athletes Tommie Smith (gold) and John Carlos (bronze) took a stand for civil rights by raising their black-gloved fists and wearing black socks in lieu of shoes. They were banned by the IOC. Věra Čáslavská, in protest to the 1968 Soviet-led invasion of Czechoslovakia and the controversial decision by the judges on the Balance Beam and Floor, turned her head down and away from the Soviet flag whilst the anthem played during the medal ceremony. She returned home as a heroine of the Czechoslovak people, but was made an outcast by the Soviet dominated government.
Politics again intervened at Munich in 1972, with lethal consequences. A Palestinian terrorist group named Black September invaded the Olympic village and broke into the apartment of the Israeli delegation. They killed two Israelis and held 9 others as hostages. The terrorists demanded that Israel release numerous prisoners. When the Israeli government refused their demand, a tense stand-off ensued while negotiations continued. Eventually the captors, still holding their hostages, were offered safe passage and taken to an airport, where they were ambushed by German security forces. In the firefight that followed, 15 people, including the nine Israeli athletes and five of the terrorists, were killed. After much debate, it was decided that the Games would continue, but proceedings were obviously dominated by these events. Some memorable athletic achievements did occur during these Games, notably the winning of a then-record seven gold medals by United States swimmer Mark Spitz, Lasse Virén (of Finland)'s back-to-back gold in the 5,000 met