Originally, in the universities of Oxford and Cambridge all undergraduate degrees were in the Faculty of Arts, hence the degree of Bachelor of Arts. Since the late 19th century, most universities in the English-speaking world have followed the practice of the University of London in dividing undergraduate degree subjects into the two broad categories of arts and sciences, awarding the degree of Bachelor of Science to students of the latter category of subjects.
In the United States, many colleges (particularly what are known as "liberal arts colleges") and universities award the BA for all "academic" subjects (whether English or Chemistry) — often these colleges and colleges within universities only offer academic (rather than pre-professional) courses. Schools that have professional training ("Police Science", "Finance", "Nursing", and so on) often reserve the BS degree for these subjects. Some schools award the BA for humanities academic courses and the BS for courses in the physical sciences; in some cases a student may choose between a BA course of study and a BS course of study in the same subject at the same college.
Earning a bachelor's degree in science or engineering (S&E) appears to serve the recipient well in the workforce, regardless of the job they do. In fact, according to a National Science Foundation (NSF) survey, people who have earned an S&E bachelor's degree generally report that science and engineering knowledge is important to their job.
That holds even if the graduate ends up doing non-technical work. According to the survey, among those workers whose only degree was an S&E bachelor's, 27 percent had S&E occupations. Sixty-three percent working in non-technical fields still said their jobs were related to their S&E degree.