In September 1985, the wreck of the Titanic was discovered around 400 nautical miles off the coast of Newfoundland, Canada, during a joint American-French expedition.

It had remained undisturbed, 13,000 feet underwater in the North Atlantic Ocean, since it sank during its maiden voyage in 1912.

The team spotted a boiler using a remotely controlled deep-sea vehicle, called Argo, and a robot named Jason, which led them to the site of the wreck.

In 2010, Louise Hidalgo spoke to some of the explorers and listened to archive recordings.

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: Titantic bow. Credit: Getty Images)