How is a library similar to the library of congress?

I have to do areport on this so I can know a little bit about this. They are both VERY large They include over thousand of written history items They both have written laws They tell a lot about our...

Dewey Decimal System

"The Library of Congress is the nation's oldest federal cultural institution and serves as the research arm of Congress. It is also the largest library in the world, with millions of books,...

A Home on the Mississippi, the painting, in Washington, D.C. and Library of Congress

Yes. The Library of Congress is the largest library in the world.