The use of "as"
There is a sentence I cannot understand well with "as"
-What type of book became known as the Archimedes palimpsest?
Is it a short way of the sentence: What type of book does the Archimedes palimpsest become known as ? I cannot figure out the exact meaning of "as".
When I first read this sentence, I thought the "as" means "like" . So I am confused.

Question

The use of "as"
There is a sentence I cannot understand well with "as"
-What type of book became known as the Archimedes palimpsest?
Is it a short way of the sentence:  What type of book does the Archimedes palimpsest become known as ?   I cannot figure out the exact meaning of "as".  
When I first read this sentence, I thought the "as" means "like" . So I am confused.

Answer

As: Used to introduce a statement which indicates that something being mentioned was known, expected, ...

Answer

In this instance the book was known by one name but became know by the name Archimedes palimpsest. "As" in this sentence indicates the same book becoming known by a different name.