Library of Alexandria
The Royal Library of Alexandria was the largest and most significant great library of the ancient world. It flourished under the patronage of the Ptolemaic dynasty and functioned as a major center of scholarship from its construction in the 3rd century BC until the Roman conquest of Egypt in 30 BC.
The first known library of its kind to gather a serious collection of books from beyond its country's borders, the Library at Alexandria was charged with collecting all the world's knowledge. It did so through an aggressive and well-funded royal mandate involving trips to the book fairs of Rhodes and Athens and a policy of pulling the books off every ship that came into port. They kept the original texts and made copies to send back to their owners.
Other than collecting works from the past, the library was also home to a host of international scholars, well-patronized by the Ptolemaic dynasty with travel, lodging and stipends for their whole families. As a research institution, the library filled its stacks with new works in mathematics, astronomy, physics, natural sciences and other subjects. The Library of Alexandria in fact had an indirect cause in the creation of writing parchment — due to the library's critical need for papyrus, little was exported and thus an alternate source of copy material became essential. This process also helped to create a reservoir of books in the relatively new city.