<p>It was 50 years ago but Zhang Xielin still remembers vividly how a shaggy-haired American table tennis player stepped onto the Chinese team's bus, a chance encounter which would shape history.</p>.<p>It was the world championships in Nagoya, Japan, and Glenn Cowan mistakenly hopped in with Zhang and his teammates -- an awkward moment because the United States and China were then deeply at odds.</p>.<p>"We were on the bus and were talking and laughing," Zhang, now 80, told AFP.</p>.<p>"But when we realised that an American had come onto the bus, we fell silent."</p>.<p><strong>Read | <a href="https://www.deccanherald.com/international/us-doubles-down-on-protecting-university-research-from-china-956635.html" target="_blank">US doubles down on protecting university research from China</a></strong></p>.<p>The Chinese triple world champion Zhuang Zedong eventually came forward and famously broke the ice, giving Cowan a silk embroidery as a souvenir from China.</p>.<p>They did not know it at the time, but it was the spark for China and the United States to begin normalising relations, in what became known as 'ping-pong diplomacy'.</p>.<p>Zhang, a doubles world champion and later China's coach, recalled: "Mr. Zhuang understood that there was a difference between the American people and the American government, and that we should be nice to American people, so he took the initiative to chat with Glenn."</p>.<p>Photographers captured Zhuang and a 19-year-old Cowan shaking hands and smiling.</p>.<p>"The newspaper came out the next day and it seemed that China and the United States were about to have a relationship," said Zhang.</p>.<p>Days later, on April 10, 1971 the US team became the first Americans to step foot in China for nearly a quarter of a century when they were invited to play friendly matches in the country.</p>.<p>The thaw saw President Richard Nixon visit China in February 1972, and a Chinese table tennis squad visit the US.</p>.<p>In 1979 formal relations were established between the two countries.</p>.<p>Yao Zhenxu played Cowan, who died in 2004, during the Americans' ground-breaking trip.</p>.<p>Yao still remembers the score, he won 21-12, 21-14, and says that Cowan thanked him afterwards for "a serious game".</p>.<p>The American team were vastly inferior to the Chinese, so the hosts sometimes let their visitors win points in the spirit of sportsmanship and goodwill.</p>.<p>Now 74, Yao says that it was only afterwards that he realised that he had played a part in something historic.</p>.<p>"Because of ping-pong diplomacy we changed the world order, and the people of China and the United States started friendly exchanges," he said.</p>.<p>Yao appeared alongside Zhang in Shanghai on Saturday to mark 50 years of ping-pong diplomacy, with the city authorities hosting an event with speeches and friendly amateur matches.</p>.<p>But the anniversary comes at a time when relations between Washington and Beijing have deteriorated markedly over a number of issues, notably trade, the fate of China's Uyghur minority and a clampdown in Hong Kong.</p>.<p>In a recorded speech to mark the 50th anniversary, China's ambassador in Washington, Cui Tiankai, accused some in the US of "ideological bias and zero-sum thinking".</p>.<p>But he and Chinese state media took a largely positive tone, with Xinhua news agency hailing ping-pong diplomacy's "wonderful legacy".</p>.<p>Yao and Zhang hope that the spirit of 1971 can help shape future relations between the world's top two economies for the better.</p>.<p>"Everyone knows that the relationship between China and the United States is a bit tense nowadays," said Yao.</p>.<p>"We hope that we can agree to disagree and keep friendly relations.</p>.<p>"Don't be afraid of competition, we can compete peacefully."</p>
<p>It was 50 years ago but Zhang Xielin still remembers vividly how a shaggy-haired American table tennis player stepped onto the Chinese team's bus, a chance encounter which would shape history.</p>.<p>It was the world championships in Nagoya, Japan, and Glenn Cowan mistakenly hopped in with Zhang and his teammates -- an awkward moment because the United States and China were then deeply at odds.</p>.<p>"We were on the bus and were talking and laughing," Zhang, now 80, told AFP.</p>.<p>"But when we realised that an American had come onto the bus, we fell silent."</p>.<p><strong>Read | <a href="https://www.deccanherald.com/international/us-doubles-down-on-protecting-university-research-from-china-956635.html" target="_blank">US doubles down on protecting university research from China</a></strong></p>.<p>The Chinese triple world champion Zhuang Zedong eventually came forward and famously broke the ice, giving Cowan a silk embroidery as a souvenir from China.</p>.<p>They did not know it at the time, but it was the spark for China and the United States to begin normalising relations, in what became known as 'ping-pong diplomacy'.</p>.<p>Zhang, a doubles world champion and later China's coach, recalled: "Mr. Zhuang understood that there was a difference between the American people and the American government, and that we should be nice to American people, so he took the initiative to chat with Glenn."</p>.<p>Photographers captured Zhuang and a 19-year-old Cowan shaking hands and smiling.</p>.<p>"The newspaper came out the next day and it seemed that China and the United States were about to have a relationship," said Zhang.</p>.<p>Days later, on April 10, 1971 the US team became the first Americans to step foot in China for nearly a quarter of a century when they were invited to play friendly matches in the country.</p>.<p>The thaw saw President Richard Nixon visit China in February 1972, and a Chinese table tennis squad visit the US.</p>.<p>In 1979 formal relations were established between the two countries.</p>.<p>Yao Zhenxu played Cowan, who died in 2004, during the Americans' ground-breaking trip.</p>.<p>Yao still remembers the score, he won 21-12, 21-14, and says that Cowan thanked him afterwards for "a serious game".</p>.<p>The American team were vastly inferior to the Chinese, so the hosts sometimes let their visitors win points in the spirit of sportsmanship and goodwill.</p>.<p>Now 74, Yao says that it was only afterwards that he realised that he had played a part in something historic.</p>.<p>"Because of ping-pong diplomacy we changed the world order, and the people of China and the United States started friendly exchanges," he said.</p>.<p>Yao appeared alongside Zhang in Shanghai on Saturday to mark 50 years of ping-pong diplomacy, with the city authorities hosting an event with speeches and friendly amateur matches.</p>.<p>But the anniversary comes at a time when relations between Washington and Beijing have deteriorated markedly over a number of issues, notably trade, the fate of China's Uyghur minority and a clampdown in Hong Kong.</p>.<p>In a recorded speech to mark the 50th anniversary, China's ambassador in Washington, Cui Tiankai, accused some in the US of "ideological bias and zero-sum thinking".</p>.<p>But he and Chinese state media took a largely positive tone, with Xinhua news agency hailing ping-pong diplomacy's "wonderful legacy".</p>.<p>Yao and Zhang hope that the spirit of 1971 can help shape future relations between the world's top two economies for the better.</p>.<p>"Everyone knows that the relationship between China and the United States is a bit tense nowadays," said Yao.</p>.<p>"We hope that we can agree to disagree and keep friendly relations.</p>.<p>"Don't be afraid of competition, we can compete peacefully."</p>