The Keeper of the Library of Alexandria

The Library of Alexandria, founded in the 3rd century BCE, was the ancient world's greatest center of learning. Scholars say it aimed to gather copies of every known text; ships entering the harbor reportedly had their scrolls seized, copied, and the copies returned while the originals stayed. Mathematicians, astronomers, and physicians worked side by side there.

Its keepers were scholars and custodians who cataloged, copied, and defended a fragile accumulation of human thought. The library's slow decline became history's great symbol of lost knowledge — and of how precious, and precarious, the record of what we know really is.