The first mass extinction on earth occurred around 2.5 billion years ago, when a photosynthesizing bacterium appeared and released so much oxygen into the atmosphere that anaerobic life was largely wiped out. This is often called the Great Oxygenation Event, the Oxygen Catastrophe, or the Oxygen Holocaust. 

“Pompeii like any other town,” Herman Melville wrote in his journal during an 1867 visit. “Same old humanity. All the same whether one be dead or alive. Pompeii comfortable sermon. Like Pompeii better than Paris.”

Accounts varied of the Great Famine of 1315–22, during which more than 10 percent of Europe’s population died. In Flanders: “Parents killed their children and children killed parents, and the bodies of executed criminals were eagerly snatched from the gallows.” In France: “There was no wine in the whole kingdom.”

Opening night of Henry James’ Guy Domville, on January 5, 1895, was “an unmitigated disaster,” James wrote in a letter, “hooted at, as I was hooted at myself, by a brutal mob, and fruitless of any of the consequences for which I have striven.” The play’s reception, he wrote, “has completely sickened me with the theater and made me feel, at any rate for the present, like washing my hands of it forever.”

In 1919 a steel storage tank burst in Boston and spilled 2.3 million gallons of molasses, creating a twenty-five-foot-high wave that killed twenty-one people and tore buildings from foundations. The tank had leaked since its installation, but the company had, in response to complaints, merely painted it a concealing brown.