Halley's Comet and Mark Twain
Poet involved
What happened
The regular return of Halley's Comet was celebrated globally, but it held an extraordinary personal connection in Florida, Missouri, coinciding exactly with the birth of Samuel Clemens (Mark Twain). Decades later, Twain famously predicted that since he came in with the comet, he would go out with it as well. This remarkable cosmic alignment came true when Twain passed away from a heart attack the exact day after the comet reached its perihelion in 1910.
Literary impact
This unique biographical alignment became one of the most famous legends in American literary history. It reinforced a romanticized, poetic belief among the public that great literary geniuses possess a deep, organic connection to the cycles of the cosmos.
Source: Wikipedia