
Who Killed Luis Colosio?
On 23 March 1994 the presidential candidate for Mexico's ruling Institutional Revolutionary Party, PRI, was shot dead in the border town of Tijuana. Luis Donaldo Colosio, who was expected to be the country's next leader, was killed when out campaigning. A sole gunman is still in jail for his murder, but Alfonso Durazo, Colosio's former private secretary, tells Mike Lanchin why he believes the murder was part of a wider political plot.Photo taken from Televisa TV broadcast showing amateur video footage of the moment that Luis Colosio was about to be shot dead during a campaign rally (credit: TELEVISA/AFP/Getty Images)
23 Mars 20189min

The Skull Valley Sheep Kill
In March 1968 more than 6,000 sheep died while grazing close to the Dugway Proving Ground, the US military's leading chemical warfare testing site, located in the US state of Utah. One theory was that they were killed by a nerve agent. Deputy Sheriff William Pitt arrived at the scene as some of the sheep were still in convulsions. He has been telling Mike Lanchin about that strange event, which became known as the Skull Valley Sheep Kill.Photo: Two farmers checking the corpses of dead sheep on a farm ranch, possibly connected to a chemical and biological warfare testing at Dugway Proving Ground, March 1968. (Photo by Rolls Press/Popperfoto/Getty Images)
22 Mars 20189min

Radiocarbon Dating of the Turin Shroud
The Turin Shroud is one of the most revered relics of the Catholic Church: a piece of linen cloth that appears to show the imprint of a blood-stained crucified man. Some Christians believe it is the ancient cloth that Jesus Christ was buried in. In 1988, the Church allowed scientists to perform a radiocarbon dating test on a small sample of the shroud. The results are still controversial. In 2016 Rob Walker spoke to Professor Michael Tite who supervised the testing process. This programme is a rebroadcast.(Photo: Picture showing a facsimile of the Shroud of Turin at the Cathedral of Malaga. Credit: Jorge Guerrero/AFP/Getty Images)
22 Mars 20188min

A Brief History of Time
In memory of the renowned theoretical physicist, Stephen Hawking, who died on the 14th of March 2018, Witness looks back at the publication in March 1988 of his best-selling book, A Brief History of Time. Louise Hidalgo has been talking to the editor who published it, Peter Guzzardi, about the book and the ideas about physics, existence and the universe that made it so popular.Picture: Physicist Stephen Hawking (Credit: Liam White/Alamy)
21 Mars 20189min

Elvis in the US Army
In March 1958, Elvis Presley, then at the height of his fame as the 'King' of Rock'n'Roll, was called up and joined the US Army. Simon Watts has been listening to the memories of the soldiers who served alongside him. The interviews are taken from the G.I. Blues of Elvis Presley, made for the BBC by Sugar Productions.(Photo: Elvis Presley listening to an army lecture. Credit:Getty Images)
20 Mars 20188min

Latvia's Controversial Waffen-SS Fighters
On March 16th 1998, veterans of the Latvian Legion who had fought for the Nazis during World War Two, marched through the capital Riga commemorating their greatest battle against the Soviet Red Army. It was a rare official remembrance of the efforts of the Waffen SS. Dina Newman has been speaking to two veterans of the Latvian Legion. Photo: Latvian infantrymen march through a street in Riga under the German occupation. Credit: Three Lions/Getty Images
16 Mars 20189min

Tancredo Neves - Doomed Hero of Brazilian Democracy
In March 1985, Brazil experienced the most traumatic moment in its transition to democracy when the first civilian president-elect in more than twenty years was rushed to hospital on the eve of his inauguration. Tancredo Neves, who had led political opposition to military rule in Brazil, eventually died 38 days later. He is now regarded as a hero in Brazil. Simon Watts talks to Tancredo Neves' spokesman, Antonio Britto.PHOTO: Tancredo Neves, centre, on a visit to Spain (Getty Images)
15 Mars 20188min

The Battle of the Airwaves in Latin America
In March 1938 the BBC began its first broadcasts to Latin America in Spanish and Portuguese. The new foreign language service was launched amid rising concerns over the influence of Nazi Germany and fascist Italy in Central and South America. Mike Lanchin has been listening back to archive recordings from the time, including the very first broadcast on March 14th 1938 and the memories of some of the BBC's first Latin American Service presenters and producers. (Photo: Rehearsals for a feature in the BBC's Brazilian programme, London 1943)
14 Mars 20189min