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Proving climate change: the 'Keeling Curve'

The US scientist who began recording carbon dioxide levels in the atmosphere in 1958

• 9 mins

The world's first environment conference

Countries first tried to tackle the damage humans are doing to the planet in 1972

• 9 mins

How the world woke up to climate change

A scientist delivered a direct message to US politicians about climate change in 1988

• 9 mins

The child climate activist of the 1990s

Severn Cullis-Suzuki was 12 when she spoke to world leaders at the UN Earth Summit in Rio

• 9 mins

Kilimanjaro: Africa’s disappearing glaciers

In the past 100 years, 90% of the glacial ice at the top of Kilimanjaro has disappeared

• 9 mins

The miracle of walking

The doctor who revolutionised the treatment of 'club foot' - rejecting invasive surgery

• 9 mins

Judgement at Nuremberg

It is 75 years since verdicts were delivered on leading German Nazis at Nuremberg

• 9 mins

The enduring legend of Fu Manchu

The evil criminal mastermind Fu Manchu was a recurring film character for decades

• 9 mins

The end of the 1956 Hungarian Uprising

On November 4th 1956 Soviet tanks rolled into Budapest crushing the anti-Soviet uprising

• 9 mins

When Eritrea silenced its critics

How a journalist tried to escape Eritrea's historic crackdown on critics and the press

• 9 mins

Britain's Black Schools

The alternative schools for black British children set up to counter racist attitudes.

• 9 mins

Chanel No. 5

One of the world's most famous perfumes was launched in 1921

• 9 mins

Spying in Berlin

At the height of the Cold War Berlin was known as the spy capital of the world.

• 9 mins

The South African football star murdered for being a lesbian

How the killing of a female footballer got South Africa talking about ‘corrective rape’.

• 9 mins

Kuwaiti oil fires of 1991

As the first Gulf War ended, retreating Iraqi forces set light to oil wells in the desert

• 9 mins

Shoot: A milestone in performance art

In November 1971, Chris Burden asked a friend to shoot him in the name of art

• 9 mins

The capture of war criminal Radovan Karadzic

How Serbia finally caught one of Europe's most wanted men in Belgrade in 2008.

• 9 mins

Cognitive Behavioural Therapy

How a particular form of psychotherapy became popular for treating anxiety and depression

• 9 mins

Sudan's October Revolution

How Sudanese civilian protesters first brought down a military regime in 1964

• 9 mins

Russia’s Democracy pioneer

Galina Starovoitova, the murdered politician who championed democracy in '90s Russia

• 9 mins

The Woman in Gold by Gustav Klimt

The story behind one of Klimt's most famous paintings

• 9 mins

Europe's last smallpox epidemic

The virologist who helped tackle the last smallpox outbreak in Europe

• 9 mins

The doctor who helped her mother to die

How a Dutch doctor’s euthanasia dilemma changed the world.

• 9 mins

Estonia’s internet ‘Tiger Leap’

Estonia started connecting all schools to the internet in 1996 ahead of other countries

• 9 mins

The assassination of the Mirabal sisters

Three sisters, all political activists, were murdered in 1960 in the Dominican Republic

• 9 mins

The Aids 'patient zero' myth

How Gaetan Dugas was mistakenly identified as the 'patient zero' of the Aids epidemic.

• 9 mins

The early days of HIV/Aids

The experience of a Ugandan-born woman diagnosed with HIV in the early days of the virus.

• 9 mins

AZT: The breakthrough treatment for Aids

How the first successful Aids drug was developed and approved in record time in 1987

• 9 mins

South Africa and Aids drugs

How activists fought successfully for cheaper Aids treatment in South Africa.

• 9 mins

Derek Jarman

The British experimental film-maker who spoke out about Aids in the 1980s.

• 9 mins