This paper provides an historical perspective on the content of the SAT. The review begins at the beginning, when the first College Board SAT (the Scholastic Aptitude Test) was administered to 8,040 students on June 23, 1926. At that time, the SAT consisted of nine subtests: Definitions, Arithmetical Problems, Classification, Artificial Language, Antonyms, Number Series, Analogies, Logical Inference, and Paragraph Reading. Over the years, the SAT has evolved in the way it measures what is now referred to as verbal and mathematical reasoning. With each redesign of the SAT, a variety of considerations were taken into account, including fairness issues, scaling issues, cost, public perception, face validity, changes in the test taking population, changes in patterns of test preparation, and changes in the college admission process. This paper describes the reasons for the various changes while emphasizing that the value of SAT scores rests on its high technical quality, and on the assumption that scores would maintain their meaning over time. A scholastic aptitude test is appended.