November 01, 1952 the US military successfully conducted Operation Ivy and propelled the world into the fusion age.
Ivy Mike, pictured above, was the first thermonuclear, fusion bomb, H-Bomob, multi-megaton nuclear bomb humanity detonated. Yielded at between 10 and 15 megatons, it was nearly 100x more powerfull then the bomb dropped on Hiroshima 7 years prior. It remains one of the most powerful man made explosions ever, and if not for the runaway reaction of the Castle Bravo test, would be the largest nuclear device the U.S. tested.
Ivy Mike was far from the ICBMs of now. It was a reffered to as a “thermonuclear installation” by our Commie enemies, and as a factory, whose sole product was a massive bomb.
In that sense you can either consider it to have the best or the worst workplace safety record, but there’s no disputing that it produced what it was meant to do.
Here is a video of the explosion for you to enjoy: