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Klaus Fuchs: Oppenheimer’s atomic spy

In 1950, Klaus Fuchs admitted passing top secret nuclear secrets to the Soviet Union

• 9 mins

Creating Alexa

In 2000, two Polish students started creating a smart speaker which sounded human

• 9 mins

Marie Kondo

In 2011, Japanese tidying expert Marie Kondo's first book was published.

• 9 mins

Charlie Hebdo attack

On 7 January 2015, 12 people were shot dead at a satirical magazine in France

• 9 mins

The invention of the hotel key card

In the 1970s, Norwegian Tor Sornes invented the hotel key card

• 9 mins

The mystery of Raoul Wallenberg

The Swedish diplomat saved thousands of Hungarian Jews during World War Two

• 9 mins

The Bosphorus boat spotter tracking Russian military trucks

In 2015, ship spotter Yörük Işık saw Russian military trucks on a ship going to Syria

• 9 mins

Franklin D Roosevelt’s New Deal

In 1933, President Roosevelt enacted the New Deal to drag the US out of depression

• 9 mins

Confronting Betty Ford’s addiction

In 1978, former first lady Betty Ford sought help for addiction

• 9 mins

Thirty years on from the Kobe earthquake

On 17 January 1995, an earthquake devastated the city of Kobe, in Japan

• 9 mins

'I wrote Schindler's List'

Thomas Keneally stumbled across the story of Oskar Schindler while buying a briefcase

• 9 mins

Drum: Africa’s revolutionary magazine

The first African lifestyle magazine Drum, was first printed in 1951

• 9 mins