The daily disposable contact lens

In May 1980 China allowed capitalist activity for the first time since the Communist Revolution, in four designated cities known as the Special Economic Zones. The most successful was Shenzhen, which grew from a mainly rural area specialising in pigs and lychees to one of China's biggest cities. In 2017 Lucy Burns spoke to Yong Ya, a musician who has lived in Shenzhen since the 1980s, and to ethnographer Mary Ann O'Donnell.IMAGE: Pedestrians and cars stream by a giant poster of Chinese patriarch Deng Xiaoping in Shenzhen, the first of China's special economic zones. TOMMY CHENG/AFP/Getty Images

4 Loka 20198min

Throughout much of 1967 striking workers and students filled the streets of Hong Kong. They were inspired by the Cultural Revolution in China and demanded an end to colonial British rule. Jasper Tsang Yok-sing was then an idealistic young student and he spoke to Rebecca Kesby in 2014.(Photo: Left wing workers put up anti-British posters in Hong Kong outside Government House. Credit: Central Press/Getty Images)

3 Loka 20199min

In 1966 Chairman Mao declared the start of the Cultural Revolution in Communist China, a radical and brutal attempt to reshape Chinese society. Saul Yeung was 20 years old at the time and in 2016 he spoke to Lucy Burns about his decision to join the Red Guards, tasked with carrying out Mao's revolution.Photo: Chinese Red Guards reading from Chairman Mao's Little Red Book (Getty Images)

2 Loka 20199min

American Sidney Rittenberg first met Mao Zedong in the 1940s during the final years of China's civil war and before Mao's victory over the Nationalist forces. Already a committed socialist, Rittenberg had been stationed in China during WW2 but decided to stay on and fight alongside Mao's Communists. In 2013 he spoke to Rebecca Kesby about his memories of one of the world's great revolutionaries.Photo: a poster of Chairman Mao in Beijing in the 1960s. Credit: AFP.

1 Loka 20198min

On 1 October 1949 Chairman Mao declared China to be a communist state. Zhu Zhende was a young recruit in the People's Liberation Army who marched in the celebrations in Beijing that day. He has been speaking to Yashan Zhao about the optimism and excitement of that time.Photo: An officer reads a newspaper to soldiers while they are waiting for the announcement of the foundation of the People's Republic of China on Tiananmen Square on October 1, 1949 in Beijing, China. (Credit: Visual China Group via Getty Images)

30 Syys 20198min

In September 1984, the famous Spanish matador, Francisco Rivera, also known as Paquirri, was gored to death by a bull during a fight in the small town of Pozoblanco. The bravery he showed during his final moments turned Paquirri into a legend. In 2013 Simon Watts spoke to El Soro, a matador who shared the bill that fateful day, and to Muriel Finer, an American journalist married to a Spanish bullfighter.Photo: A recent bullfight (Getty Images).

27 Syys 20198min

In September 2008, the world's biggest science experiment, the Large Hadron Collider, was started up for the first time at the European Organisation For Nuclear Research, or CERN, in Geneva. Simon Watts talks to Paul Collier, a British engineer whose team built the multi-billion dollar machine designed to investigate the structure of the universe.PHOTO: Inside the Large Hadron Collider (Getty Images)

26 Syys 20199min

When the Islamic State group took over Mosul in Iraq in 2014 they flooded the internet with propaganda, claiming life under IS was fantastic. One historian living in the city decided to post a counter-narrative online. Omar Mohammed set up "Mosul Eye" to expose the atrocities and failings of IS fighters, but it was at great risk to his own safety. Omar tells Rebecca Kesby how he posted news from Mosul to the outside world from right under the noses of the Islamic State group. He says he felt it was his duty to tell the real story.(Photo: Mosul Eye website. BBC)

25 Syys 201910min