Given separate Commencement and reunions/Alumni Day celebrations, Primus could not devote full attention during the pomp-cum-protests that marked this year’s 373rd exercises. Yet Harvard is much more than its presidents and administrators. Because Harvard and Radcliffe were separate entities until the late 1960s, the records of the two cohorts remain separate in the red book, which comes with two front covers, aligned in opposite directions, and flipped contents. Another way Harvard has evolved to embrace talented people from all walks of life was evident on May 31. That lineup “seems particularly meaningful,” Lewis noted, in the wake of President Claudine Gay’s resignation before she could keynote the day.