Being jostled in a car accident should only cause a few weeks of pain—so why do some people suffer longer? Are they faking it for insurance money? Is it all in their heads?

The first passenger railroad in the United States—the Baltimore and Ohio Railroad—began construction in 1828. Five years later, in 1833, the country saw its first fatal train accident. As train travel proliferated, train wrecks became “a surprisingly frequent form of disaster,†the historian Richard Selcer writes. And “the single worst type of railroad accident … not […]