Period

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Knole, a house on an epic scale that's now run by the National Trust.

Explore Knole: the grandest of family homes . This is a premium piece of content available to subscribed users.

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Lord Louis Mountbatten with his fiancee Edwina Ashley in 1922. (Photo by Getty Images)

The Mountbattens: success and scandal . This is a premium piece of content available to subscribed users.

A c1880 Christmas card shows a frog committing murder

Carrots, goblins and killer frogs: an unexpected history of Christmas

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Oskar Schindler, who prevented hundreds of Jews from being murdered in the Holocaust

History hero Simon Reeve chooses Oskar Schindler (1908–74) . This is a premium piece of content available to subscribed users.

Few war leaders have been more profoundly steeped in history than Winston Churchill, who drew inspiration from his ancestor – and one of Britain's most celebrated generals – the Duke of Marlborough (left). (Images by Getty Images/Bridgeman

Sending history into battle: the lessons that war leaders have tried to learn from the past

The White House in Washington DC, which has been home to all US presidents since John Adams in 1800. (Photo by Getty Images)

8 facts you might not know about the White House, home of the president of the USA

Lauren Bruner and Iyozo Fujita

Pearl Harbor: 5 frontline stories from people who were there

Rosa Parks rides an integrated bus

From Rosa Parks to Martin Luther King: the boycott that inspired the dream

Members of the Ku Klux Klan march down Pennsylvania Avenue in Washington DC in 1925. The Klan of this era was a terrorist group in the precise meaning of that term, says Linda Gordon. (Photo by Topical Press Agency/Getty Images)

When the Ku Klux Klan was a mass movement

A 'Thanksgiving Greetings' postcard. (Photo by K.J. Historical/CORBIS/Corbis via Getty Images)

A brief history of Thanksgiving

Princess Margaret wearing a fur coat

Princess Margaret: from glamorous royal to a slide into tragedy

A portrait of Isabella I of Castile. (Photo by PHAS/UIG via Getty Images)

Isabella I of Castile: Europe’s greatest queen?

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A waitress working behind the counter at the first ever Lyons tea shop to be opened in London, 1953

The teashop empire . This is a premium piece of content available to subscribed users.

British writer Roald Dahl

Second World War

Roald Dahl 11 things you might not know about the children's author

Harlech Castle with Snowdonia in the background.

A brief history of Wales: the resilient nation