Witness History

In the 1970s, scientists in China used ancient traditional medicine to find a cure for malaria. Artemisinin was discovered by exploring a herbal remedy from the 4th century, and can cure most forms of malaria with very few side effects. It has saved millions of lives all over the world. Rebecca Kesby talks to Professor Lang Linfu, one of the scientists involved.PHOTO: Professor Lang Linfu (family archives)

In 1990, NASA launched the historic mission which put into orbit the Hubble Space Telescope. The orbiting observatory has revolutionized astronomy and allowed us to peer deeper than ever before into the Universe. Alejandra Martins talks to astronaut, Kathryn Sullivan, about the Hubble mission and the telescope's initial teething problems.PHOTO: The Hubble Space Telescope (NASA)

In May 2000, a virus created by a college dropout in the Philippines caused chaos around the world. Millions of people received - and opened - an email titled I Love You, which then jammed computer networks. Gabriela Jones talks to IT security expert, Graham Cluley.(Photo: The I Love You email. Credit: Getty Images)

The story of how a car that had originally been the idea of Nazi leader Adolf Hitler was saved by a British army officer at the end of World War Two. In August 1945 the British Army sent Major Ivan Hirst to take control of the giant Volkswagen plant in Germany, built under the Nazis to produce 'people's cars' for the German masses. Ivan Hirst persuaded the British authorities to allow production to restart of the Volkswagen Beetle, which Hitler had had designed before the war as an affordable car for ordinary Germans and which would become one of the most successful cars in the world. Louise Hidalgo has been listening to archive of Major Hirst talking about that time.Picture: Major Ivan Hirst (right) driving the 1000th Beetle off the production line at Wolfsburg in March 1946 (Credit: Volkswagen AG)

In 1950, a 200-page-long directory called "Red Channels " was published in America. It was a list of people working in the media who were suspected of being Communists or Communist sympathisers. It ruined careers and sent actors, writers and directors into exile. Most of the people named in it are no longer alive. But Vincent Dowd has been speaking to former Hollywood actress Marsha Hunt who is still with us, aged 102.PHOTO: Marsha Hunt in 1938 (Getty Images)

In 1986, the US Supreme Court heard a landmark case which would define sexual harassment as a crime in America. The lawsuit, brought by bank clerk Mechelle Vinson, established that abuse in the workplace was a breach of civil rights. It was built on pioneering legal scholarship by feminist lawyer Catharine MacKinnon, who talks to Sharon Hemans.PHOTO: Mechelle Vinson in 1986 (Getty Images)

A deadly new form of haemorrhagic fever was discovered in the small town of Marburg in West Germany in the summer of 1967. The first patients all worked at a factory in the town which made vaccines. In the course of their work they had all come into contact with blood or tissue from monkeys from East Africa who were infected with a disease similar to Ebola. Lucy Burns speaks to virologist Werner Slenczka and former laboratory worker Frederike Moos about their experiences of the outbreak.Photo: A Grivet monkey looks out from an enclosure at Egypt's Giza Zoo in Cairo on August 1, 2017 (Mohamed El-Shahed/AFP via Getty Images)

In early 2003 a medical emergency swept across the world. Severe Acute Respiratory Syndrome, or SARS, was a deadly virus which had first struck in southern China but soon there were cases as far away as Canada. William Ho and Tom Buckley were at the forefront of the battle against the epidemic.Photo: The SARS virus (Science Photo Library)

In 1955 scientists in the US led by Dr Jonas Salk announced they had developed an effective vaccine against polio. The poliomyelitis virus had caused paralysis and death particularly amongst children since time immemorial. Louise Hidalgo spoke to Dr Salk's son Peter, who was one of the first children to be vaccinated by his father, and to a nurse who worked on the polio vaccination programme.PHOTO: Jonas Salk innoculating his son, Peter (Courtesy of March of Dimes)

Some 300 people died during the first documented outbreak of the deadly disease occurred in the 1970s in the Democratic Republic of Congo - then known as Zaire. The virus was named after the river which flowed close to the village where it was discovered. Two doctors, Dr Jean Jacques Muyembe and Dr David Heymann, were among those who worked to bring the outbreak under control. They spoke to Claire Bowes in 2009.This programme is a rebroadcast.Image: The Ebola virus under a microscope. Credit: Science Photo Library

In 1918, more than fifty million people died in an outbreak of flu, which spread all over the world in the wake of the first World War. We hear eye-witness accounts of the worst pandemic of the twentieth century.(Photo: An American policeman wearing a mask to protect himself from the outbreak of Spanish flu. Credit:Topical Press Agency/Getty Images)

The story of Dr. Semen Gluzman, a Ukrainian psychiatrist, who took a stand against the psychiatric abuse of political dissidents in the Soviet Union. During the Cold War, Soviet authorities had many dissidents declared mentally ill and confined them to special psychiatric hospitals for 'treatment'. In the 1970s, a young Ukrainian psychiatrist, decided to write a counter-diagnosis of one of the most famous of these incarcerated dissidents. For this, he would pay a high price. Alex Last speaks to Dr Semen Gluzman about his struggle to oppose Soviet punitive psychiatry. Photo: Semen Gluzman in 1989.(Gluzman)

In 1976 South Asian women workers who had made Britain their home, led a strike against poor working conditions in a British factory. Lakshmi Patel was one of the women who picketed the Grunwick film-processing factory in north London for two years, defying the stereotype of submissive South Asian women. They gained the support of tens of thousands of trade unionists along the way. Lakshmi talks to Farhana Haider about how the strike was a defining moment for race relations in the UK in the 1970s.(Photo: Jayaben Desai, leader of the Grunwick strike committee holding placard 1977 Credit: Getty images)

The UK was one of the first in Europe to declare it would ban lead from petrol after a successful campaign showing it was poisoning children and leaving them permanently brain damaged. But it took until the year 2000 to finally remove leaded petrol from sale. Lead was first added to petrol in the 1920s to make the fuel run more efficiently. The latest figures show only three countries worldwide still sell leaded petrol. Claire Bowes spoke to Dr Robin Russell Jones from the "Campaign for Lead Free Air" about the battle to show that lead from petrol was dangerous.(Photo: a petrol pump in the UK. Credit: Dr Robin Russell-Jones)

One of the toughest challenges facing Japan’s economy is that its population is ageing rapidly and its workforce is shrinking dramatically. But a Japanese investment analyst, Kathy Matsui, came up with a visionary idea to help her country, and she even invented a new word for it: Womenomics. The answer, according to her, was to tap into the talent of half the population. Kathy Matsui speaks to Alejandra Martins. (Photo: Kathy Matsui. Courtesy of Goldman Sachs)

In 2009, three American hikers were arrested and jailed after they crossed an unmarked border into Iran while on holiday in Iraqi Kurdistan. Sarah Shourd was released first and fought a long campaign to get her friends Shane Bauer and Josh Fattal released from prison in Teheran. Their freedom was eventually brokered by diplomats from Oman – opening up a diplomatic channel between Iran and the US which was later used in their nuclear negotiations. Sarah Shourd talks to Simon Watts.PHOTO: Sarah Shourd, centre, with the mothers of Shane Bauer and Josh Fattal (Getty Images)

Thousands of people died in India during the world's last major smallpox epidemic. Individual cases had to be tracked down and quarantined to stop the deadly disease spreading. Ashley Byrne spoke to Dr Mahendra Dutta and Dr Larry Brilliant who took part in the battle to eradicate smallpox once and for all.Photo: Smallpox lesions on the human body. 1973. Credit: Getty Images.

A group of Californian nuns left their convent and set up their own independent community in 1970. They’d been inspired by the social change they saw around them in Los Angeles in the 1960s, and the Pope's promise to modernise the Catholic Church. They wanted to stop wearing their traditional habit and abandon their set prayer times, but their conservative cardinal refused to discuss change. So three hundred of the sisters left to set up their own lay community – the Immaculate Heart Community, which is still running today. Former Sister Lucia Van Ruiten tells Witness History about the crisis they caused in the Catholic church. (Photo: Nuns from the Sisters of the Immaculate Heart of Mary play guitars at the Mary's Day parade, 1964. Courtesy of the Immaculate Heart Community)

In 1973, an engineer called Marty Cooper made the world’s first mobile phone call from a street in New York City. Cooper worked for a then tiny telecoms company called Motorola, but he had a vision that one day people would all want their own personal phone that could be reached anywhere. He talks to Louise Hidalgo.Picture: Martin Cooper in New York City in 1973 with the first prototype mobile phone (Credit: Martin Cooper)

In 1985, human remains were found by chance on a remote island in Antarctica by Chilean biologist Dr Daniel Torres. But whose were they? It would take years to determine their remarkable origin. We speak to Dr Torres about his discovery and how it revealed an unknown chapter of indigenous South American history.Photo: Skull discovered on LIvingstone Island, Antarctica in 1985 (D.Torres/INACH)

In October 1991, an international protocol to protect the world’s last wilderness, Antarctica, from commercial exploitation was agreed at a summit in Madrid. The agreement was the result of a long campaign by environmental organisations to stop oil and gas companies being allowed to explore the continent. Louise Hidalgo has been talking to Kelly Rigg from Greenpeace.Picture: Blue icebergs in Antarctica (Credit: Getty Images)

An insider's account of Project Babylon, the plan to build the largest gun in the world for Saddam Hussein's Iraq. The "Supergun" was the brainchild of Canadian artillery maverick, Dr Gerald Bull. He'd long wanted to build a gun capable of launching satellites into space. In the 1980s Saddam Hussein agreed to fund this plan. But was it a science project or a weapon? In 1990, the "Supergun" hit the headlines and it became an international scandal. Alex Last spoke to Chris Cowley an engineer who worked on Project Babylon,. Appropriately enough he has also become an author of thrillers. His latest book is called Without A Shadow.Photo: UN inspectors visit the site of the 350mm (baby) Super Gun in Iraq. After the Gulf War, the gun components were broken up and destroyed.(UN)

"Battle Bus" was a sculpture made by Sokari Douglas Camp in memory of Nigerian environmentalist Ken Saro Wiwa and eight other activists who were controversially executed in 1995. The sculpture was seized and impounded by Nigerian port authorities in 2015 when the art work was shipped to Nigeria. Sokari Douglas Camp talks to Rebecca Kesby about growing up in the Niger Delta and how it's shaped her art work. PHOTO: "Battle Bus" by Sokari Douglas Camp on show in London in 2015 (Sam Roberts Photography).

In 2002, scientists in the US began performing a landmark series of experiments on Buddhist monks from around the world. The studies showed that the brains of experienced meditators alter, allowing them to focus better and manage their emotions. Alejandra Martins talks to Professor Richard Davidson of the Center for Healthy Minds at the University of Wisconsin-Madison.PHOTO: A monk taking part in the experiment (Center for Healthy Minds).

In February 1990, the Nasa space probe Voyager took a famous photo of Earth as it left the Solar System. Seen from six billion kilometres away, our planet appears as a mere dot lit up by the Sun, and the image is credited with giving humanity a sense of our small place in the Universe. Darryll Morris speaks to Nasa planetary scientist, Candice Hansen, who worked on the Voyager programme. The programme is a Made-In-Manchester Production.Photo: The Earth seen as a pale blue dot in a band of sunlight (Nasa)

On Valentine's Day 1995, authors Sherrie Schneider and Ellen Fein published a dating handbook called The Rules: Time Tested Secrets for Capturing the Heart of Mr Right. The book advised women that if they wanted to find a husband they should not approach a man first or pay for themselves on dates. Criticised in some quarters as anti-feminist, it soon became a bestseller, with celebrity fans from Beyonce to Meghan Markle. Lucy Burns speaks to Sherrie Schneider about creating a cultural phenomenon.(Photo: Groom and bride exchanging wedding ring. Credit: Wavebreakmedia/iStock)

The groundbreaking novel about female sexuality, called Fear of Flying, was first published in 1973. Dina Newman has been speaking to its author, Erica Jong.Photo courtesy of Erica Jong

A poor single mother of three, Carolina Maria de Jesus lived in a derelict shack and spent her days scavenging for food for her children, doing odd jobs and collecting paper and bottles. Her diary, written between 1955 and 1960, brought to life the harsh realities faced by thousands of poor Brazilians who arrived in cities like São Paulo and Rio looking for better opportunities. Her daughter, Vera Eunice de Jesus Lima, speaks to Thomas Pappon about how the book changed her family's life.(Photo: Carolina Maria de Jesus in the Canindé Favela. Credit: Archive Audálio Dantas)

In 1996, after many rejections, author JK Rowling at last finds a publisher for her first Harry Potter novel. Louise Hidalgo hears from editor, Barry Cunningham, who spotted the boy wizard's potential and helped create a phenomenon that would revolutionise childrens' book publishing, selling more than 450 million copies.Picture: author JK Rowling holds the sixth and penultimate Harry Potter book, Harry Potter and the Half-Blood Prince. (Credit: AP) Audio recording © J.K. Rowling

In 1966, the collected thoughts of China's communist leader became an unexpected best-seller around the world. A compendium of pithy advice and political instructions from Mao Zedong, it was soon to be found on student bookshelves everywhere.(Photo: Front cover of Mao's Little Red Book)

On 11th February 1990 anti-apartheid leader Nelson Mandela walked free after spending 27 years in a South African jail. It was a day that millions of black South Africans had been waiting for and marked the beginning of the end of white rule. Fellow activist Valli Moosa remembers that day, and the hasty preparations to make it possible and tells Louise Hidalgo how things almost didn't go to plan.Picture: Nelson Mandela raises his fist in salute as he walks out of Victor Verster prison near Cape Town accompanied by his wife Winnie Mandela (Credit: Reuters/Ulli Michel)

In February 1987, a small Native American tribe from California won a landmark ruling at the US Supreme Court granting them the right to conduct gambling activities on their reservation. The campaign by the Cabazon Band of Mission Indians led to the creation of a multi-billion-dollar gaming industry on Indian land across the United States. Simon Watts talks to former Cabazon Band president, Brenda Soulliere, and their lawyer, Glenn Feldman.PHOTO: An Indian-run casino in California (Getty Images)

In the early 1980s deaf children in Nicaragua invented a completely new sign language of their own. It was a remarkable achievement, which allowed experts a unique insight into how human communication develops. Mike Lanchin has been speaking to American linguist Judy Shepard-Kegl, who documented this process and says "our belief is that you are born with a language-ready brain". (Photo credit should read INTI OCON/AFP via Getty Images)

The Empress Dowager Cixi ruled China for 47 years until her death in 1908. But it wasn't until the 1970s that her story began to be properly documented. She'd been vilified as a murderous tyrant, but was that really true or was she a victim of a misogynistic version of history? Prof Sue Fawn Chung was the first academic to go back to study the original documents, and found many surprises. She tells Rebecca Kesby the story of "the much maligned Empress Dowager". (Photo: Chinese Empress Dowager Cixi, portrait c1900. Credit: Ullstein bild/Getty Images)

Norwell Roberts joined the Metropolitan police in 1967. He was put forward as a symbol of progressive policing amid ongoing tensions between the police and ethnic minorities in the capital. But behind the scenes, he endured years of racist abuse from colleagues within the force. Norwell Roberts QPM spoke to Alex Last about growing up in Britain and his determination to be a pioneer in the police force. Photo: London's first black policeman PC Norwell Roberts beginning his training with colleagues at Hendon Police College, London, 5th April 1967. (Hulton Archive/Getty Images)

The treaty which established the European Economic Community was signed by six countries in 1957 - France, West Germany, Belgium, Italy, Luxembourg and the Netherlands. It was hoped that European countries would never go to war again, if they were tied together by economic interests. The treaty formed the basis for what is now the European Union.Photo: European leaders at the Palazzo dei Conservatori in Rome. Credit: Keystone/Getty Images

Madam C. J. Walker was the first ever self-made female millionaire. She was born to former slaves in the USA and was orphaned at seven but against all the odds she went on to create her own business selling black hair-care products. By the time of her death in 1919 she'd become a famous philanthropist and civil rights campaigner. Claire Bowes has been speaking to her great great granddaughter A'Lelia Bundles. Photo: Madam Walker Family Archives/A'Lelia Bundles

The remarkable Turner's oak in Kew Gardens in London not only survived the Great Storm that ravaged the south of England in 1987, but also changed the way that trees are cared for around the world. Alejandra Martins has been speaking to Tony Kirkham, head of the Arboretum at Kew. (Photo: Turner's oak. Credit: Alejandra Martins)

In January 2013 the Indian government began to overhaul the country's laws on rape following the brutal gang rape and killing of a 23 year old physiotherapy student in Delhi. The public outcry across India forced the government to commission a legal review. Farhana Haider has been speaking to Gopal Subramanium, one of the three senior lawyers tasked with reforming the way India tackled violence against women.(Photo: Justice Leila Seth. Justice J Verma and Justice Gopal Subramanium and team deliver their report. January 2013. Credit: Permission of Gopal Subramanium)

Prince Harry and Meghan’s announcement that they will step back from their royal duties is not the first time the British royal family has tried to reform itself from within. In 1992 Queen Elizabeth had what she called her “annus horribilis” . It was the year that her sons Prince Charles and Prince Andrew both separated from their wives, while her daughter Princess Anne got divorced - and it was also the year that Windsor Castle caught fire. The Way Ahead group was set up by senior members of the royal family and some of their closest advisors to make sure that Britain’s monarchy stayed relevant in the modern age. Lucy Burns speaks to Charles Anson, who was the Queen’s press secretary at the time.(Photo: Queen Elizabeth II makes her "annus horribilis" speech at London's Guildhall, November 1992. Credit: Anwar Hussein/Getty Images)

In 1975, San Diego Zoo began placing tissue samples of rare animals in cryogenic storage for the benefit of future generations. Called the Frozen Zoo, the refrigeration system now contains the cells of more than 1000 species ranging from the white rhinoceros to the black-footed ferret. Scientists are now using the collection to try to save species threatened by extinction. Simon Watts talks to Dr Oliver Ryder, who has worked at the Frozen Zoo from the very beginning.PHOTO: Northern White Rhino cells in the Frozen Zoo (San Diego Zoo Institute For Conservation Research)

Whales were being hunted to extinction, when in 1967, a biologist called Dr Roger Payne realised they could sing. It changed the perception of whales and helped found the modern conservation movement. Claire Bowes spoke to Dr Payne about his discovery in 2017. This programme is a rebroadcast.(Photo: Humpback Whale, courtesy of Christian Miller of Ocean Alliance)

Silent Spring, written by marine biologist Rachel Carson, looked at the effect that synthetic pesticides were having on the environment. Within years of its publication in 1962, the widespread use of DDT had been outlawed in the USA. Louise Hidalgo has been speaking to Carson's adopted son Roger Christie about the author and her work.Image: A copy of Silent Spring (Credit: Science Photo Library)

A flightless bird, the dodo became extinct just decades after being discovered on the uninhabited island of Mauritius by European sailors. Because dodos couldn't fly they, and their eggs, were eaten by explorers and the cats and rats that came with them on board their ships. By the late 1600s there were none left. Simon Watts charts the demise and subsequent popularisation of the dodo.Image: An engraving of a dodo. Credit: Science Photo Library.

How scientists discovered that a deadly fungus was killing off amphibians around the world. The chytrid fungus has caused the greatest loss of biodiversity in our time. Alejandra Martins spoke to biologist Dr. Karen Lips, one of the key scientists who unravelled the mystery of the extinctions. Photo: dead frog infected with chytrid fungus. Credit: Forrest Brem

The US tracked down the al Qaeda leader to a city in northern Pakistan in May 2011. Special operations troops were sent to capture or kill bin Laden in a top secret raid in the dead of night. The Americans didn't tell their Pakistani allies about the raid beforehand. Gabriela Jones has been speaking to Nicholas Rasmussen who was in the White House situation room with President Barack Obama and US military chiefs as the raid took place.Photo: Osama bin Laden. Credit:AFP/Getty Images

How a 14-year-old boy became the youngest person to be executed in the USA during the 20th century. George Stinney Jr was sent to the electric chair in 1944. He had been tried for the murder of two young girls, but when the case was reviewed by a court in South Carolina in 2014 his conviction was annulled. Ashley Byrne has been speaking to George Stinney Jr's sister Katherine Robinson, and to Matt Burgess who was one of the team of lawyers who fought to clear his name.Photo: George Stinney Jr in 1944. Credit Alamy.

In January 2014 after decades of violent struggle, a peace deal was agreed in the Philippines between a Muslim separatist organisation and the government. The deal granted largely Muslim areas of the southern Mindanao region greater autonomy in exchange for an end to armed rebellion. Farhana Haider has been speaking to the government's chief negotiator Miriam Coronel-Ferrer about the difficulties posed by being a woman negotiating with a Muslim rebel group.(Photo: MILF peace panel chief Mohagher Iqbal hands over signed documents with Government of the Philippines Peace Panel Chief Negotiator Miriam Coronel Ferrer 27 March, 2014. Credit: Noel Celis/AFP/Getty Images)

Just weeks after the fall of the Berlin Wall East Germans found themselves able to walk into the communist secret police headquarters in Berlin. The much-feared Stasi agents had kept files on millions of their fellow citizens. Soon people were searching the archives. Jim Frank has spoken to Bert Konopatzky who took part in the demonstration which led to the Stasi opening its gates.Photo:East Germans streaming into the secret police headquarters in Berlin on the night of January 15th 1990. Credit: Zöllner/ullstein bild/Getty Images.

The National Trust was founded in 1895, and initially focused on preserving Britain's rural heritage. But their mission expanded in the 1930s to include protecting stately homes - the grand old houses of the British aristocracy - which were under threat. Higher taxation meant many landowners were struggling to maintain their properties while sweeping social changes made it harder for them to find servants. James Lees Milne worked for the National Trust's Country House Scheme, travelling around the country to see which houses the Trust should acquire, and writing a diary about his experiences which paints a vivid picture of a disappearing world of elderly aristocrats living in genteel poverty in crumbling country houses.Lucy Burns presents interviews with James Lees Milne from the BBC archive.(Photo: The National Trust country house Kingston Lacy. Credit: Loop Images/Universal Images Group /Getty Images)