Born on July 13, 1864, John Jacob Astor IV was a wealthy real‑estate magnate famed for developing the legendary Waldorf‑Astoria hotel and serving as a decorated Spanish‑American War veteran. His life ended tragically aboard the RMS Titanic, where his pregnant wife Madeleine survived alongside her maid and nurse, while Astor himself perished in the icy Atlantic.
Beyond his immense fortune and architectural legacy, Astor was a passionate amateur inventor and an early science‑fiction author. In 1894, he published A Journey in Other Worlds, a futuristic novel imagining Earth in the year 2000 — complete with global climate‑control systems, electric vehicles, and manned space‑exploration missions to Jupiter and Saturn. His blend of technological optimism and imaginative speculation remains one of the most unusual literary contributions ever made by a Gilded Age titan.
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