This 2014 episode covers why when the Great London Smog descended in December of 1952, nobody initially realized anything unusual was going on. At its largest, it extended 30 kilometers around London, and it killed thousands of people.
Stuff You Missed in History Class
2,402 clip(s)
SYMHC Classics: Madame Blavatsky
Behind the Scenes Minis: Society for Disastrous Accidents
The SL-1 Reactor Incident