In 1971, advertising writer Roger Hargreaves's eight-year-old son Adam asked him an unusual question: 'What does a tickle look like?'

Inspired, Roger got out his marker pens and created an orange character with a round body, long stretchy arms and a blue bowler hat.

That character would become Mr Tickle, one of the first Mr Men books.

Adam Hargreaves tells Megan Jones how his late father's children's books became a worldwide success.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: Roger Hargreaves with Mr Wrong. Credit: Gerrit Alan Fokkema/Fairfax Media via Getty Images)

In 1985, government scientists discovered anti-freeze in bottles of fine Austrian wine.

No one died or fell ill from drinking the poisoned wine, but the scandal nearly destroyed the country's wine-making industry.

In 2015, Susan Hulme spoke to Heidi Schroek, a young Austrian wine-maker at the time.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: Vineyards in Sulztal, Austria. Credit: Franz Marc Frei/Getty)

In May 2002, former US President Jimmy Carter paid a controversial visit to Cuba, which had been subject to a US trade embargo for more than 40 years.

The trip culminated in a speech, broadcast live on Cuban radio and television, in which Carter called for the US to lift economic sanctions, while he encouraged President Fidel Castro to embrace democracy and uphold Cubans' civil liberties.

Jennifer McCoy accompanied Carter on the trip. She speaks to Ben Henderson.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Archive courtesy of The Carter Center)

(Photo: Jimmy Carter and Fidel Castro after a game of baseball. Credit: Jorge Rey via Getty Images)

In April 1980, thousands of Cubans tried to escape the country by claiming asylum at the Peruvian embassy in Havana.

In response, Cuban President Fidel Castro opened the port of Mariel to anyone who wanted to leave, including criminals. From April until October more than 100,000 Cubans left for the US. Mirta Ojito was one of them. She spoke to Simon Watts in 2011.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: Cuban refugees in 1980. Credit: Bettmann/Contributor via Getty Images)

In 2007, four British servicemen perched on the wings of an Apache helicopter in Afghanistan, in an audacious mission to rescue a fallen comrade.

Lance Corporal Mathew Ford was part of a unit which had attacked Jugroom Fort - a major Taliban command and control centre in Helmand Province, but he was left behind after a frantic withdrawal.

Volunteers put themselves forward for a risky rescue attempt, which would become legendary in military circles.

Captain Chris Fraser-Perry was a 19-year-old British Royal Marine who took part in the mission. He speaks to Kevin Core.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: Captain Dave Rigg (l) and Captain Chris Fraser-Perry strapped to an Apache helicopter, Afghanistan 2007. Credit: Sgt Gary Stanton)

In September 1991, two German hikers found a dead body while walking through Europe’s Ötzal Alps. It turned out to be a perfectly preserved 5,000-year-old mummy.

The archaeologist Konrad Spindler inspected the body along with the assemblage of items recovered from the gravesite.

A person of this age had never been found before in such exceptional condition.

They’d lived during the transition between the stone and copper ages, and provided a snapshot into early human culture, medicine and genetics.

Hunter Charlton tells the story through archive interviews with the archaeologist Konrad Spindler and forensic pathologist Rainer Henn who were involved in recovering, analysing and preserving the mummy. An Ember production.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: The hikers with the mummy they discovered in September 1991. Credit: Paul Hanny/Gamma-Rapho via Getty Images)

On 10 December 1979, pro-democracy activists clashed with police in Kaohsiung, Taiwan.

The incident, which happened during Taiwan's martial law period, paved the way for the transition to democracy.

Rachel Naylor speaks to Yao Chia-wen, who was jailed for 12 years for his involvement.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: The Kaohsiung Incident on 10 December 1979. Credit: AP Photo / Yueh-Kang Pan)

In 2006, hundreds of thousands of school children in Chile took over their schools and marched in the streets, in a protest about inequality in education.

It was known as the "Penguin Revolution" because of their black and white school uniforms.

The students were demanding good quality education for all children, regardless of whether they were rich or poor.

Grace Livingstone speaks to Karina Delfino, who was a 16-year-old school girl and one of the leaders of the movement.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there.

For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: Riot police block an avenue in Santiago during clashes with students, 5 June 2006. Credit: David Lillo/AFP via Getty Images)

On 27 January 1945, prisoners at the Nazis’ largest death camp were freed by the Soviet Union’s Red Army.

General Vasily Petrenko commanded one of the four units that liberated Auschwitz.

The Nazis murdered 1.1 million people at Auschwitz-Birkenau between 1941 and 1945. Almost a million were Jews, 70,000 were Polish prisoners, 21,000 Roma, 15,000 Soviet prisoners of war and an unknown number of gay men.

It was one of six death camps the Nazis built in occupied Poland in 1942, and it was by far the biggest.

Vicky Farncombe produced this episode using an interview General Vasily Petrenko gave to the BBC’s Russian Service in 2001. He died in 2003.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: Auschwitz survivors watch the arrival of Soviet troops come to free them. Credit: Keystone-France/Gamma-Keystone via Getty Images)

On 26 January 1926, John Logie Baird first demonstrated his 'televisor' in public. It was the prototype for television.

Many people couldn't believe what they were seeing whilst others thought it was a pointless invention.

In 2010, Iain Logie Baird, the inventor's grandson, spoke to Claire Bowes.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: Inventor John Logie Baird. Credit: Topical PressAgency/Getty Images)

On 12 January 1976, author Agatha Christie died peacefully, aged 85.

She created the detectives Hercule Poirot and Miss Marple.

By the time of her death, Christie had written more than 80 books. Most of her works were detective novels but she also wrote romances, short stories, poetry and plays.

In 2015, Louise Hidalgo spoke to her grandson, Mathew Prichard.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: English detective novelist, Agatha Christie. Credit: Bettman/Getty Images)