Origen of Alexandria (c. 185-254) compiled the Hexapla — a six-column synopsis of the Old Testament showing the Hebrew text, a Greek transliteration of the Hebrew, and four Greek translations (Septuagint, Aquila, Symmachus, Theodotion). The full work ran to perhaps 6,000 pages and was housed at the library of Caesarea. It is largely lost, but fragments and quotations survive in later writers.
Why this matters
The first systematic textual criticism of the Old Testament. Origen's work shaped how Christians thought about Scripture for centuries and produced the textual variants quoted by later fathers like Jerome.
Scripture references
PsalmsIsaiahGenesis
Location
Library of Caesarea (lost)