From 1874 to 1949, the Ontario government required all students, who hoped to go to high school, write and pass a province-wide entrance exam. Students had to have a passing grade of 50% or better to enter Grade 9. This was not only true for Ontario; many states in the United States also required qualifying examinations to enter secondary school.
The Ontario exams tested arithmetic, grammar, spelling, geography, dictation and composition. They were a two-day affair, with the exam papers marked by individuals independent of the local school boards.
Read — The Grade 9 Entrance Exam