Libraries have existed for thousands of years as archives of the earliest forms of writing, these date back to even 2600 BC!
Wow really? I love going to the library
Libraries have so many books! I've heard that some even have millions of them!
Oh really? I've never been to a huge library like that!
Yeah, the one that I've been to, in Houston, isn't really that large either. 
What is the largest library in the United States?
Hillman Library
Hillman Library is the largest library and the center of administration for the University Library System (ULS) of the University of Pittsburgh in Pittsburgh, Pennsylvania, United States. Located on the corner of Forbes Avenue and Schenley Drive, diagonally across from the Cathedral of Learning, Hillman serves as the flagship of the approximately 7.1 million-volume University Library System at Pitt.
University Library System.
The University Library System (ULS) is the University of Pittsburgh's largest library organization and is administered by the Hillman
other formats. Libraries range widely in size up to millions of items. In Latin and Greek, the idea of a bookcase is represented by "Bibliotheca" and "Bibliothēkē" (Greek: βιβλιοθήκη): derivatives of these mean "library" in many modern languages, e.g. French "bibliothèque".
The first libraries consisted of archives of the earliest form of writing—the clay tablets in cuneiform script discovered in Sumer, some dating back to 2600 BC. Private or personal libraries made up of written books appeared in