Note 4 — Chapter I · THE ANCIENT BRITONS, ROMANS, ANGLO-SAXONS, AND DANES.

Ptolemy was a native of Egypt, and lived at Alexandria during the first half of the second century. He was an astronomer, chronologer, and geographer. His geographical work was in use in all schools until the 15th century, when it was supplanted by another treatise containing the more recent discoveries of Venetian and other navigators.