The death of William Henry Harrison had significant consequences, including the collapse of a major political party. And the story of how he died that most of us learned in school is almost certainly false. In fact, he might well have been the victim of a serial killer of presidents- the water in Washington DC.
The first class of nuclear submarines were a learning experience for the Soviet Navy. The November class boats experienced numerous difficulties and accidents, culminating in what has been described as a potential “Underwater Chernobyl."