This angle became a unit of measure and was called the degree or angle of a degree. To this arc, which corresponds to the course of the Sun following its orbit during a day, was made to correspond an angle, whose apex was the center of our planet. Thus, with each passing day, the Sun ran a part of this path. Calculations indicated that the Sun took exactly 360 days to complete a full turn. At that time, it was thought that the Sun revolved around the Earth. The degree has its origin in Babylon, whose system of numbering was based sixty. Each degree can be divided into minutes and seconds. The Degree is a measure of the plane angles that corresponds to `1//360` of a circumference.
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