Answer: The Reverend's preaching style, like his original appearance, is very ordinary so he puts on the veil and leaves his mouth uncovered to be unique and more intriguingoHe had the reputation of a good yet dull preacheroHis listeners pay much more attention to him once he has the veil on because it draws more attention.
The first devices used for measuring the position of the Sun were shadow clocks, which later developed into the sundial. ... 3500 BC, are among the earliest shadow clocks. The oldest of all known sundials dates back to c. 1500 BC (during the 19th Dynasty), and was discovered in the Valley of the Kings in 2013.