study of history

(education) pedagogy (activities of educating, teaching or instructing)

specialize in, major in

academic major

conjunctive form of 積む (tsumu) [godan]

pile up

take place, past, history

(Confucianism) Great Learning

a university; a college

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend