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What Happened at...?
A journey back to understand our modern world.
What Happened at...? Episodes
What Happened At The Somme?
On 1 July 1916, nearly 20,000 British soldiers were killed on the first day of the Battle of the Somme – one of the bloodiest days in the history of warfare and a lasting ...
08-07-2026
BBC 1
What Happened At Chernobyl
The 1986 explosion at Chernobyl triggered a public health emergency across Europe. Today, the site's strategic location continues to be a flashpoint in Russia's war with Ukraine ...
21-06-2026
BBC 1
What Happened At Hiroshima
It’s 80 years since the US dropped atomic bombs on the Japanese cities of Hiroshima and Nagasaki, leading to the end of World War II. \n\nThe recorded death tolls are est ...
15-08-2025
BBC 1