The associate degree spread across the US, with California College in Oakland (now the American Baptist Seminary of the West) introducing Associate in Arts and Associate in Letters degrees in 1900, and the Lewis Institute in Chicago (now part of the Illinois Institute of Technology) introducing Associate in Literature and Associate in Science degrees in 1901 (both replaced by the Associate in Arts in 1904) followed by the Associate in Domestic Economy degree in 1908. Associate degrees were not always two-year sub-bachelor's awards in the early 20th century: Harvard University and associated colleges awarded Associate in Arts degrees to students who had passed university extension courses "equal in number and standard to the courses required of a resident student for the degree of Bachelor of Arts" from 1910 to 1933.