Incidentally, this concept where creators add subtle little incorrect details to protect their copyright isn’t just limited to maps. You can (or, if they’re doing it right, you can’t) find made-up words in dictionaries, fictional entries in encyclopedias, fake phone numbers in phone books, non-existent businesses in business directories, meaningless strings in software code, extra screws in architectural plans, bad advice in medical textbooks and glaring factual errors in light-hearted books about maps. Read more
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