Umbrella is another term for the parasol, which was first used as a protection against the scorching heat of the sun, "Para" meaning prepare or shield and "sol" meaning sun. The word "umbrella" has evolved from the Latin "umbrella" (and "umbel" is a flat-topped rounded flower) or "umbra" meaning shaded. In the sculptures of Nineveh the parasol appears frequently Austen Henry Layard gives a picture of a bas-relief representing a king in his chariot, with an attendant holding a parasol over his head. It has a curtain hanging down behind, but is otherwise exactly like those in use today. It is reserved exclusively for the monarch, and is never carried over any other person. In Persia the parasol is repeatedly found in the carved work of Persepolis, and Sir John Malcolm has an article on the subject in his 1815 "History of Persia." In some sculptures, the figure of a king appears attended by a slave, who carries over his head an umbrella, with stretchers and runner complete.