Witness History Episodes Available now
The mystery of Raoul Wallenberg
The Swedish diplomat saved thousands of Hungarian Jews during World War Two
The invention of the hotel key card
In the 1970s, Norwegian Tor Sornes invented the hotel key card
Charlie Hebdo attack
On 7 January 2015, 12 people were shot dead at a satirical magazine in France
Marie Kondo
In 2011, Japanese tidying expert Marie Kondo's first book was published.
Creating Alexa
In 2000, two Polish students started creating a smart speaker which sounded human
Klaus Fuchs: Oppenheimer鈥檚 atomic spy
In 1950, Klaus Fuchs admitted passing top secret nuclear secrets to the Soviet Union
Robert Ripley and the 鈥楤elieve It or Not鈥� empire
During the Great Depression, cartoonist Robert Ripley made millions from freaky facts
Indian Ocean tsunami - Aceh
In 2004, a deadly tsunami swept away entire communities around the Indian Ocean
Indian Ocean tsunami - Tamil Nadu
On 26 December 2004, communities around the Indian Ocean were swept away by a tsunami
Dinner for One: How an English comedy became a German tradition
The sitcom Dinner for One, recorded in 1963, has become a German New Year's Eve tradition
