(Disclaimer: In spite of the long-winded setup, this thread is not about the Heinlein novel, but I need to discourse on it to some extent in order to provide context.)
I’m sure there are many here who have read The End Of Eternity by Robert Heinlein. It’s essentially a time-travel story in which “Eternity” is all the future from about 2800 CE to some point millions of centuries in the future, up and down which certain people, called “Eternals”, have the privilege of traveling at will. Near the end of the story, one of the characters–I forget why–has to travel back before the earliest point of Eternity to a point in the 1920s, effectively stranding himself in the past. He’s expecting the arrival of another Eternal and is supposed to advertise his presence so the newcomer will be able to contact him. So he takes out a small display ad in a newspaper:
ALL
TALK
OF THE
MARKET
the idea being that only another visitor from the future will understand the word “atom”, though it does seem curious for Heinlein to suggest that this would work at a time when the foundations of nuclear physics had already been laid down by Rutherford, Bohr, and many others.
Whatever, it doesn’t matter. I only bring it up because it’s slightly reminiscent of something I just discovered in my 1960 World Book, in the “Transportation” article:
Of course, it is true that M. King Hubbert propounded the peak oil idea in 1956, but I’ll bet many more people in the 1920s knew what an atom was, than knew about peak oil. The idea of peak oil was probably known to some of Hubbert’s fellow petroleum engineers, but hardly anyone else. What’s more, Peak Oil is rather odd as the name of an oil company, even a fictitious one in an encyclopedia illustration. You don’t go drilling for oil on mountaintops, do you? So there it is, peak oil being mentioned in a general encyclopedia, at least as early as 1960.
Obviously, this is just a striking coincidence, even if I did check the list of contributors to make sure that Hubbert’s name wasn’t included in it.
What similar “anachronisms” have you noticed in old pictures, books, or other material?