On 12 August 1990, the world's most complete skeleton of a Tyrannosaurus rex was found in South Dakota.

Deena Newman speaks to Peter Larson whose team made the landmark discovery.

This programme was first broadcast in 2015.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by and curious about 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 how the Excel spreadsheet was developed, the creation of cartoon rabbit Miffy and how the sound barrier was broken.

We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: the moment Reagan and Gorbachev met in Geneva, Haitian singer Emerante de Pradines’ life and Omar Sharif’s legendary movie entrance in Lawrence of Arabia.

You can learn all about fascinating and surprising stories, like the invention of a stent which has saved lives around the world; the birth of the G7; and the meeting of Maldives’ ministers underwater. We cover everything from World War Two and Cold War stories to Black History Month and our journeys into space.

(Picture: The Tyrannosaurus rex skeleton known as Sue. Credit: Mark Wilson/Getty)

In May 1942, a team of Norwegian resistance fighters in occupied Norway were getting ready to blow up a railway carrying materials crucial to the German war machine.

Led by Lieutenant Peter Deinboll, a local from the area, they set out to execute what the Allied forces saw as the top priority sabotage operation in Norway at that stage in the war. Should they fail, allied planes would carpet bomb the village, including Deinboll’s hometown.

Lars Bevanger speaks to Lieutenant Deinboll’s nephew, Gunnar Deinboll Jenssen.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by and curious about 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 how the Excel spreadsheet was developed, the creation of cartoon rabbit Miffy and how the sound barrier was broken.

We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: the moment Reagan and Gorbachev met in Geneva, Haitian singer Emerante de Pradines’ life and Omar Sharif’s legendary movie entrance in Lawrence of Arabia.

You can learn all about fascinating and surprising stories, like the invention of a stent which has saved lives around the world; the birth of the G7; and the meeting of Maldives’ ministers underwater. We cover everything from World War Two and Cold War stories to Black History Month and our journeys into space.

(Photo: Lieutenant Peter Deinboll Jr. Credit: Gunnar Deinboll Jenssen)

In the early 1990s, Algeria was engulfed by a brutal civil conflict, as armed Islamist groups fought the state and civilians lived in fear. Foreigners were urged to leave, and many did. But Sister Lourdes Migueles, a Spanish Augustinian nun who had already spent decades serving in Algeria, chose to stay.

As the violence worsened, religious figures also became targets. In October 1994, two of Sister Lourdes’s fellow nuns, Caridad Alvarez and Esther Paniagua, were shot dead near their convent as they returned from work. Sister Lourdes remembers hearing the gunshots, the panic in the street, and realising immediately that it was her fellow Sisters who had been attacked. Soon afterwards, she was ordered by her superiors to leave Algeria, something she says caused her deep pain, as though she had abandoned the country she loved.

Years later, she returned to Algiers, where she still lives and works today, helping women and children. Sister Lourdes Migueles tells her story to Colm Flynn.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by and curious about 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 how the Excel spreadsheet was developed, the creation of cartoon rabbit Miffy and how the sound barrier was broken.

We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: the moment Reagan and Gorbachev met in Geneva, Haitian singer Emerante de Pradines’ life and Omar Sharif’s legendary movie entrance in Lawrence of Arabia.

You can learn all about fascinating and surprising stories, like the invention of a stent which has saved lives around the world; the birth of the G7; and the meeting of Maldives’ ministers underwater. We cover everything from World War Two and Cold War stories to Black History Month and our journeys into space.

(Photo: Nuns attend a ceremony at the Chapel of our Lady of Santa Cruz in Algeria in 2018. Credit: Ryad Kramdi/via Getty)

In April 1991, journalists from 38 African countries came together in Namibia for a week-long seminar to discuss the need for a free, independent and pluralistic press on the continent.

When discussions ended after five days on 3 May, they had created the Windhoek declaration - a declaration of free press principles.

Later that year, Unesco’s general conference endorsed the declaration.

In 1993, the UN General Assembly proclaimed 3 May as World Press Freedom Day.

It is marked annually around the world.

Gwen Lister was a newspaper editor at the time and chaired the seminar.

She tells Jen Dale about the conference and the personal costs of standing up for press freedom.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by and curious about 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 how the Excel spreadsheet was developed, the creation of cartoon rabbit Miffy and how the sound barrier was broken.

We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: the moment Reagan and Gorbachev met in Geneva, Haitian singer Emerante de Pradines’ life and Omar Sharif’s legendary movie entrance in Lawrence of Arabia.

You can learn all about fascinating and surprising stories, like the invention of a stent which has saved lives around the world; the birth of the G7; and the meeting of Maldives’ ministers underwater. We cover everything from World War Two and Cold War stories to Black History Month and our journeys into space.

(Picture: Gwen Lister with former Namibian Prime Minister Hage Geingob at the Windhoek seminar. Credit: The Namibian)