Witness

Viktor Orban, now the populist Hungarian Prime Minister, was an anti-communist youth leader in 1988. Over the years his party has become increasingly nationalist. His former friend and fellow activist Gabor Fodor shared personal memories of Viktor Orban with Dina Newman. Photo: Hungarian Prime Minister Viktor Orban delivers his annual state of the nation speech in Budapest, Hungary, 10 February 2019. Credit: European Press Agency.

A British doctor published an article in the leading medical journal The Lancet in 1998 that led to a global panic over the triple vaccine protecting children against measles, mumps and rubella. Dr Andrew Wakefield linked the MMR vaccine with autism. He advocated the use of single vaccines instead while the link was explored. Meanwhile many parents stopped vaccinating their children entirely, leading to outbreaks of measles. In 2010 the General Medical Council in the UK found Dr Wakefield 'dishonest' and 'irresponsible' and struck him off the medical register. Photo: Dr Andrew Wakefield arrives at the General Medical Council in London to face a disciplinary panel, July 16th 2007 (Daniel Berehulak/Getty Images)

Electricity workers in Mexico City accidentally uncovered a massive stone sculpture in 1978. It turned out to be the Aztec Goddess of the Moon, Coyolxauhqui. The sculpture was found in an area where the Aztecs, 500 years earlier, had built the capital of their empire: the city of Tenochtitlán. The discovery changed the face of the Mexican capital. María Elena Navas spoke to Raúl Arana, one of the archaeologists who identified the sculpture as the Moon Goddess. Photo: The sculpture of Coyolxauhqui, the Aztec Moon Goddess (Getty Images)

On March 26th 1989, Soviet citizens were given their first chance to vote for non-communists in parliamentary elections. Democrats led by Boris Yeltsin won seats across the country. Dina Newman spoke to Sergei Stankevich who was one of the successful candidates. This programme was first broadcast in 2014. (Photo: Boris Yeltsin on the campaign trail. Credit: Vitaly Armand. AFP/Getty Images)

The story of how one of the wealthiest men in the Netherlands was exposed as a Nazi war criminal. In the 1970s, Pieter Menten was a respected art dealer, but it was revealed that during the Second World War, he had led mass killings in eastern Poland. We hear from Dutch journalist, Hans Knoop, whose investigation into Menten caused a national scandal and finally led to the millionaire's arrest. Photo: Pieter Menten photographed in 1977.(credit: National Archives of the Netherlands)