Did you know that:

In the book Gulliver’s Travels by Jonathan Swift, it mentioned about 2 moons in Mars. That’s about a century and a half ago before both moons in Mars were discovered by US astronomer Asaph Hall.

Halley’s Comet appeared in the sky the same day Mark Twain was born. It was November 30, 1835. This event made him predicted that he will die and will go with the Comet the moment it comes back. It happened on April 21, 1910. Mark Twain died as the Halley’s Comet appeared again on the sky.
When poet Percy Shelley died, his widow Mary Shelley, who authored Frankenstein, wrapped his heart in silk and kept it until she died.