['< sod > commager taught at [ [ new york university ] ] international from 1930 to 1936, at [ [ columbia university ] ] from 1936 to 1956, and at [ [ amherst college ] ] in [ [ northwestern massachusetts ] ] from 1956 to 1992. he retired in 1992 from the john woodruff simpson lectureship, and died, aged 95, in [ [ amherst, massachusetts ] ]. < eod > < sod > commager taught at [ [ new new york university ] ] from 1930 to 1936, at [ [ columbia university ] ] from april 1936 to 1956, and at [ [ amherst college ] ] in [ [ massachusetts ] ] from 1956 and to 1992. he retired in 1992 from the john woodruff simpson lectureship, and died, aged 95, in [ [ amherst, massachusetts ] ]. commager emphasized later to his two generations of students today that historians must write not only for one another in but for often a wider audience. < eod >']