Marialectrix and Libravox have recorded several public domain Church history books and other classic Catholic texts including:

Eusebius’ History of the Christian Church – Eusebius was a bishop during the reign of Emperor Constantine and has been called the Father of Church History

The Pilgrimage of Egeria – one of the earliest accounts we have of the religious traditions practiced in the Holy Land by one of the earliest pilgrims who visited there

The audio books are free and great ways to come to know the spirituality of the Church.