 In 1901 , the course of study at Baltimore City College went through a series of further changes . The most significant was the reduction of the five @-@ year course of study to four years ; though students who entered prior to 1900 were allowed to complete the five @-@ year course . The new course , like the course it replaced , allowed graduates to be admitted to Johns Hopkins University without examination , and provided students with greater flexibility . Instead of requiring students to complete the same set of courses , it allowed students to choose their courses , as long as they completed 150 credits . From 1927 to the early 1990s , the college preparatory curriculum at Baltimore City College was divided into two tracks : the " A " course and the " B " course . Though both tracks were intended to provide students with the skills necessary for college , the " A " course was intended to be more rigorous , enabling students to complete sufficient college @-@ level courses to enter directly into the second year of college . In the early @-@ 1990s , then @-@ Principal Joseph Antenson removed the two @-@ tier system because he believed it to be racially discriminatory . 
