The Septuagint was the original Old Testament used by Christians in the first few centuries but was later replaced in western Bibles by the Masoretic Texts.
Septuagint: Ezras is a 21st-century English translation that is easy to understand, using common English versions of Hebrew names instead of transliterated Greek names that are generally found in translations of the Septuagint.
As a result, most early Christian writings are confusing, especially when discussing the chronology of the world.
The Septuagint was the original Old Testament used by Christians in the first few centuries but was later replaced in western Bibles by the Masoretic Texts