He concludes his journey by considering the great unsolved problems of mathematics today, including the Riemann Hypothesis, a conjecture about the distribution of prime numbers. A million dollar prize and a place in the history books await anyone who can prove Riemann's theorem.

Michael Mosley embarks on an informative and ambitious journey exploring how the evolution of scientific understanding is intimately interwoven with society's historical path.

Michael Mosley embarks on an informative and ambitious journey exploring how the evolution of scientific understanding is intimately interwoven with society's historical path.

Michael Mosley takes an informative and ambitious journey exploring how the evolution of scientific understanding is intimately interwoven with society's historical path.

Michael Mosley takes an informative and ambitious journey exploring how the evolution of scientific understanding is intimately interwoven with society's historical path.

Michael Mosley takes an informative and ambitious journey exploring how the evolution of scientific understanding is intimately interwoven with society's historical path.

Michael Mosley takes an informative and ambitious journey exploring how the evolution of scientific understanding is intimately interwoven with society's historical path.

Michael Mosley takes an informative and ambitious journey exploring how the evolution of scientific understanding is intimately interwoven with society's historical path.

Documentary in which director and DJ Don Letts looks at a very particular and very provocative British subculture - skinhead. He explores how skinhead has become associated with street fighting, trouble on the football terraces and violent racism in the public consciousness in Britain and around the world, but reveals that its origins lie in a cultural coming together that could not be further from its tarnished image.

Barrister Harry Potter tells the remarkable story of English justice

English common law, with its emphasis on the role of the jury, set a standard of fairness that has influenced legal systems across the world. Many of the features that characterise today's courts were in place by as early as the 14th century.

Many of the rights and freedoms we take for granted today were forged during the turbulent 17th and 18th centuries, when courageous men used the law to challenge tyranny and the abuse of power.

Although England had a well-developed legal system by the 19th century, the trial process was stacked against the defendant.

The Trouble with Aid tells the story of what really happened during the major humanitarian disasters of the last 50 years: from the Biafran War, through to the Ethiopian famine and Live Aid, to the military intervention in Somalia and to present-day Afghanistan. Despite the best intentions, aid can have some unintended and terrible consequences.

Protests, political turmoil, pandemic - the inside story of the extraordinary Trump presidency. Friends and foes tell of his rise from TV star to leader of the free world.

In 2013 London Underground is 150 years old. The world's first underground railway is spending its anniversary year celebrating its own history.

An iceberg may have sunk the Titanic, but this documentary argues that it was actually a long chain of misjudgements, human errors and misfortunes that led to this maritime catastrophe

Many Londoners believed the Great Fire of London was started deliberately by a foreign enemy. And they wanted to make sure a foreigner would pay for this crime of the century.

David Olusoga opens secret government files to show how the Windrush scandal and the ‘hostile environment’ for black British immigrants has been 70 years in the making.

Taking his clues from archaeology, modern laboratory experiments, historical criminology and literature, psychologist Steven Pinker traces the social and neurobiological roots of human violence and asks, ‘Are human beings becoming less violent? And if so, why?’

Documentary series. Psychologist Steven Pinker examines the evidence behind the argument that the world is becoming more peaceful, including whether income equality and sport curb violence.

Series exploring how a violent and racist government was destroyed by the concerted efforts of men and women working on multiple fronts inside and outside South Africa for more than three decades

Ten years in the making, this series explores how a violent and racist government was destroyed by the concerted efforts of men and women working on multiple fronts inside and outside South Africa for more than three decades.

This second episode looks at how athletes and activists around the world hit white South Africa where it hurts - on the playing field.

In the third episode, in the wake of the Soweto Uprising and the murder of Steve Biko the world's young people take the lead in the anti-apartheid campaign.

In the fourth episode, South Africa is brought to its knees as the world refuses to let business go on as usual.

In this final episode, the campaign to free Nelson Mandela ignites a worldwide crusade which brings apartheid to an end.

The World at War (1973–74) is a 26-episode British television documentary series chronicling the events of the Second World War.

Japan's society and culture during wartime, and how life is transformed as the country gradually becomes aware of increasinly catastrophic setbacks including the Doolittle raid, defeat at Midway, the death of Isoroku Yamamoto, the battle of Saipan and the relentless bombing of Japanese cities.

The conflicts in Europe and the Pacific are two separate wars. Many Americans are content to forget about Hitler and Europe and concentrate their war efforts on the Japanese. President Roosevelt is committed to the fight against Hitler, but Congress is not. Inexplicably, Hitler declares war on America, thus relieving Roosevelt of a difficult decision and, ultimately, altering the course of the war. Seventh in the series