Knowledge: The first book of Wikipedia's title was "The First Wikipedia" and was very informative as many people purchased it. On the other hand, the Brothers Grimm made their debut fairy tale "Once a upon a time" in the 19th century.

Conversation:
I used to love being read fairy tales when I was a child. What's your favorite fairy tale?
Really?  Did you know that while fairy tales are not true, they are also not possible to be true?
Hey that's neat.  What common features do fairy tales have?
Well they usually have enchantments and magic!   And they feature fantasy characters, like dragons, fairies, unicorns and witches.
Oh okay...and can you tell me anything about the Brothers Grimm?  Who were they?
Oh they were the brothers Wilhelm and Jacob Grimm. They were German, and they published folklore, back in the 19th century. They also collected that folklore. Wilhelm and Jacob were philologists, lexicographers, academics, cultural researchers, as well as being authors!
Oh wow that's so informative. Do you know their first book title?

Response: Ah yes, their first book title is "Once upon a time."