The invention of the white LED lightbulb

In 1993, a lightbulb moment led to the invention of the first white light emitting diode

• 10 mins

The Khmer Rouge take power in Cambodia

In April 1975 the four-year rule of the brutal Khmer Rouge began in Cambodia

• 10 mins

Clearing landmines in Cambodia

Aki Ra laid hundreds of landmines for the Khmer Rouge, but began clearing them in 1992.

• 9 mins

The origin of World Book Day

23 April 1996, saw the first World Book Day. It originated from a Spanish tradition

• 10 mins

The creation of YouTube

In April 2005, the first video was posted onto YouTube

• 10 mins

Coca-Cola’s ‘New Coke'

On 23 April 1985, Coca-Cola changed the secret formula of its fizzy drink

• 10 mins

Staging Othello in apartheid South Africa

Dame Janet Suzman recalls directing Shakespeare's classic in 1987

• 10 mins

The death of Adolf Hitler

Adolf Hitler's secretary recalls his last days in 1945

• 9 mins

Exercise Tiger: Disastrous D-Day rehearsal

In April 1944, a German fleet sank two allied ships. Around 749 US servicemen died.

• 10 mins

Doi Moi: Vietnam's economic miracle

Radical reforms introduced in 1986 lifted millions out of poverty

• 10 mins

Surviving the fall of Saigon in 1975

When South Vietnam fell, most people couldn’t escape

• 9 mins

The Cu Chi tunnels of the Vietnam War

The story of North Vietnam’s underground tunnel network in South Vietnam

• 9 mins

Ten countries join the EU in one night

On 1 May 2004, the European Union went through its biggest ever enlargement

• 10 mins