Eusebius of Caesarea, a bishop and historian, endeavored to list the places that are mentioned in the Bible and the distances between them. His Onomasticon is still used by present-day archaeologists and historians to locate sites and to study the geographical development of the Levant. Though part of his early historical works, it came to be used as a guidebook of sorts for pilgrims. Written in Greek, and later translated into Latin by the fourth-century C.E. Church father Jerome, the Onomasticon has now appeared for the first time in English.