In 1817 the Linnaean Society of New England published a thrilling report: they had investigated reports of a new sea creature, and after scrupulous examination they could declare that they had discovered not just a new species, but an entirely new genus native to the shores of the United States. They had identified and scientifically described, they claimed, a great sea monster.
On October 20, 1924 an explosion occurred in the forward turret of the light cruiser USS Trenton. The event shocked the public, especially given that a very similar accident had already occurred aboard the Battleship Mississippi the previous June.