In 2007, the Mexican state of Tabasco experienced its worst flooding in 50 years, with more than a million people affected.

Eighty per cent of the region was under water, with people having to be rescued from the roofs of their homes by boat.

The flooding occurred after heavy rain caused rivers in the state to break their banks.

Marco Franco worked as an emergency coordinator for the Red Cross during the floods. He speaks to Tim O’Callaghan about his memories of that time.

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: Residents are rescued from a flooded neighborhood in the state of Tabasco in 2007. Credit: Tomas Bravo/Reuters)

The disaster at the Chernobyl nuclear power plant, in Ukraine, on 26 April 1986, was the world’s worst nuclear accident.

The explosion in reactor four caused radioactive parts to be spread over the nearby area.

Hundreds of thousands of people were involved in the decontamination efforts, including soldiers and workers at the power station. They were known as the liquidators.

Some even had to run out onto the roof of the reactors to clear debris which had been scattered from the radioactive core.

Yurіy Skaletskyy was a radiological officer in the Soviet Navy. He monitored the radiation exposure faced by the liquidators and tells Tim O'Callaghan how workers improvised their own protective gear using sheets of lead foil.

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: The liquidators on the roof of the Chernobyl nuclear power plant. Credit: Sergei Supinsky/AFP via Getty Images)

In 1993, plans to log one of Canada’s ancient rainforests sparked the country’s largest act of civil disobedience.

It was known as the war in the woods. For months, protesters blocked a remote logging road on Vancouver Island, leading to more than a thousand arrests.

Megan Lawton speaks to protest organiser Tzeporah Berman who, aged 23, was arrested and charged with 857 criminal counts.

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: Protesters sat disrupting the loggers. Credit: Jacob Sutton/Getty Images)

In 2011, after months of little or no rain in central and eastern Europe, water levels on some parts of the Danube River fell to their lowest level in 70 years.

It’s one of Europe’s busiest shipping routes, but in November of that year, traffic ground to a halt on major sections of the Danube, and, on the Serbia-Hungary border, dozen of cargo ships were stranded.

In Romania, one of the country’s nuclear power stations was at risk of shutdown because of insufficient water for cooling, and, in Serbia, the drought revealed sunken World War Two ships and unexploded bombs.

In the lower Danube, low water levels also caused a decrease in bird and fish populations.

Kristian Yakimov, an ecologist and tourist guide in Bulgaria, speaks to Jacqueline Paine.

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: Cracked, muddy ground at the river bank of the Danube river. Credit: Alexanda Rilich/Getty Images)