The implausible real world

In a discussion of Zenna Henderson's People stories, a reader mentions that the psychic powers were believable, but not the silver dimes. The production of silver dimes ended in 1964.

I thought the poppy field in the Wizard of Oz that put Dorothy to sleep was bad art-- it didn't fit with the other sorts of fantasy in the book or movie. As it happens, opium poppies produce low-lying fumes that make the fields too dangerous for children.

Anything else you can think of in fantasy which you didn't believe but which turned out to be true?

The implausible real world

In a discussion of Zenna Henderson's People stories, a reader mentions that the psychic powers were believable, but not the silver dimes. The production of silver dimes ended in 1964.

I thought the poppy field in the Wizard of Oz that put Dorothy to sleep was bad art-- it didn't fit with the other sorts of fantasy in the book or movie. As it happens, opium poppies produce low-lying fumes that make the fields too dangerous for children.

Anything else you can think of in fantasy which you didn't believe but which turned out to be true?