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In 1844 the 10th US president, John Tyler, invited members of his cabinet aboard a new warship called the Princeton for a cruise on the Potomac, the river that runs through Washington and leads out into the Chesapeake Bay. The ship had a 12-inch cannon aboard, which someone had seen fit to call the Peacemaker. And throughout this happy little voyage, the big gun was fired ceremoniously to the delight of onlookers lining the banks of the river. Drink was consumed, and there was an atmosphere of celebration. After several hours, and several toasts, the captain of the ship, one Robert F. Stockton, was persuaded to fire the cannon one last time – only for the gun to explode, sending white hot metal scattering across the deck and killing eight people including two cabinet members, Secretary of State Abel Upshur and Navy Secretary Thomas Gilmer. Tyler, who was below deck at the time, was unhurt. Well, that’s one way to create the need for a cabinet reshuffle.
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