Sinai is the peninsula, triangular in form, which projects into the Red Sea between Egypt and Arabia. The name used to be applied to the mountainous region of the south, now it is made to comprise the land as far north as the Mediterranean.

Sinai is famous for the part which it has played in the religious history of mankind. It was at one time a centre of moon-cult, before it became the seat of the promulgation of the Law to the Jews at the time of Moses. In Christian times it was one of the chief homes of the hermits, and the possession of the relics of St. Katherine in the great convent of the south, caused Sinai to be included in the Long Pilgrimage throughout the Middle Ages.

A history of Sinai deals with the people who visited the peninsula at different times, rather than with its permanent inhabitants, who, in the course of centuries, seem to have undergone little change. They still live the life of the huntsman and the herdsman as in the days of Ishmael, sleeping in the open, and adding to their meagre resources by carrying dates and charcoal to the nearest centres of intercourse, in return for which they receive corn.