Imagine you have a bunch of books about history that you want to put on the shelves in your room. But you don't want to just put them anywhere - you want to organize them in a way that makes it easy to find the book you need when you need it.
Well, the Library of Congress is a really big library that has lots and lots of books about all sorts of things, including history. They also want to organize their books in a way that makes it easy for people to find what they're looking for.
So they came up with a system of organizing books called the "Library of Congress Classification" (LCC for short). This system puts books into categories based on what they're about.
One of these categories is called "Class C - Auxiliary Sciences of History." Now I know that sounds like a pretty big and confusing phrase, but let me break it down for you:
- "Class C" just means that it's a category of books within the LCC system.
- "Auxiliary" means that these are things that help or support something else. In this case, these are sciences (which just means subjects) that help support the study of history.
- "History" is pretty self-explanatory - these are books that are about the past.
So what kind of books might you find in Class C? Well, these could be things like books about archaeology (which is the study of ancient artifacts and ruins), genealogy (which is the study of family history), or even geography (which is the study of maps and the earth's surface).
Basically, if there's a subject that can help us learn more about history, it might be included in Class C of the Library of Congress Classification system. And by organizing these books into categories like this, it makes it easier for people to find the books they need when they want to learn about history.