How does Mark Twain use imagery in A Connecticut Yankee In King Arthur's Court?

Examples of Imagery:

Under the old dim writing of the Yankee historian appeared traces of a penmanship which was older and dimmer still - Latin words and sentences: fragment from old monkish legends, evidently.

And plainly, too, they were a childlike and innocent lot; telling lies of the stateliest pattern with a most gentle and winning naivete, and ready and willing to listen to anybody else's lie, and believe it, too.

I saw that I was just another Robinson Crusoe cast away on an uninhabited island, with no society but some more or less tame animals, and if I wanted to make life bearable I must do as he did - invent, contrive, create, reorganize things; set brain and hand to work, and keep them busy.