Originally named Toronto Junction High School, Humberside Collegiate held its first classes in 1892. Two years later it moved from temporary quarters on Pacific Avenue to a new building on this attractive and spacious site. When the city annexed West Toronto in 1909, the school's name was changed to Humberside. The school's art collection includes a memorial stained glass window and the largest mural ever painted by Arthur Lismer, one of the "Group of Seven" Painters. Generations of Humbersiders subscribe to its motto: "Felix qui potuit rerum cognoscere causas" (Happy is one who can discover the causes of things).