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)