Eusebius of Caesarea (the church historian)

Eusebius of Caesarea was an early Christian historian and theologian credited with documenting the history of the Church from its beginnings to his time in the 4th century. His most famous work, "Ecclesiastical History," provides a detailed account of early Christian development, key figures, and significant events. Eusebius aimed to unify Christian history and demonstrate the Church's divine guidance. His writings are valuable for understanding early Christianity, though they also reflect his perspectives and biases of that era. He is considered a foundational figure in the historiography of the Christian tradition.