Author: BBC Radio 4

The Russian Revolution a hundred years on. To mark the centenary Tom Sutcliffe is in Moscow to discuss the forces that led to the Revolution, and to find out how far Russians today embrace or reject such a pivotal moment in their country's history. He talks to a senior member of President Putin's political party, Konstantin Kosachev. And he is joined by the journalists Mikhail Zygar and Arkady Ostrovsky and the Director of the Tretyakov Gallery, Zelfira Tregulova. Producer: Katy Hickman.

The Russian Revolution a hundred years on. To mark the centenary Tom Sutcliffe is in Moscow to discuss the forces that led to the Revolution, and to find out how far Russians today embrace or reject such a pivotal moment in their country's history. He talks to a senior member of President Putin's political party, Konstantin Kosachev. And he is joined by the journalists Mikhail Zygar and Arkady Ostrovsky and the Director of the Tretyakov Gallery, Zelfira Tregulova. Producer: Katy Hickman.

Live from Salford, during the Conservative Party conference in neighbouring Manchester, Sir David Cannadine argues that Victorian Britain was never far from revolution. He tells Andrew Marr how a century seen as conservative was actually troubled by political upheaval. Britain may have been the world's greatest empire but it was riven by self-doubt.

Novelist Anthony Powell depicted the turbulence of the 20th century in his series A Dance to the Music of Time. Powell is seen as the arch-conservative, but biographer Hilary Spurling argues that he was fascinated by power and people at every level of society.

Jane Green tracked the 2017 General Election as co-director of the British Election Study. She explains how the public judges those in power, and why political reputations are hard to shake.

And Phillip Blond, director of the think tank ResPublica, helped shape recent Conservative ideas including the "big society" and the "northern powerhouse". He fears the Conservative Party could become irrelevant unless power is shared out.

Producer: Hannah Sander.

Live from Salford, during the Conservative Party conference in neighbouring Manchester, Sir David Cannadine argues that Victorian Britain was never far from revolution. He tells Andrew Marr how a century seen as conservative was actually troubled by political upheaval. Britain may have been the world's greatest empire but it was riven by self-doubt.

Novelist Anthony Powell depicted the turbulence of the 20th century in his series A Dance to the Music of Time. Powell is seen as the arch-conservative, but biographer Hilary Spurling argues that he was fascinated by power and people at every level of society.

Jane Green tracked the 2017 General Election as co-director of the British Election Study. She explains how the public judges those in power, and why political reputations are hard to shake.

And Phillip Blond, director of the think tank ResPublica, helped shape recent Conservative ideas including the "big society" and the "northern powerhouse". He fears the Conservative Party could become irrelevant unless power is shared out.

Producer: Hannah Sander.

Francine Stock talks to the sleep scientist Matthew Walker whose latest book is a clarion call to get more sleep, as the latest research confirms that sleeping less than six or seven hours has a devastating impact on physical and mental health.

Armed with proof that shift work is detrimental for workers, political strategist and chief executive of the RSA Matthew Taylor considers what responsibility companies have to their staff in making sure they get enough sleep and whether since industrialisation modern working practices militate against this.

Concerns about lack of sleep and remedies for improving it are nothing new: the historian Sasha Handley looks back to early modern sleep patterns and advice, and wonders why so many of our forebears slept in two distinct phases with an hour in the early hours set aside for sex, housework or reading.

The latest exhibition at the National Gallery, Reflections, co-curated by Susan Foister, shows how the medieval painter van Eyck had a huge influence on the Pre-Raphaelite painters, whose work stood in opposition to creeping industrialisation and harked back to a by-gone era of knights and sweet slumber.

Producer: Hannah Sander.