On April 14, 1921, Albert Einstein gave a lecture in the Great Hall following
a series of lectures in Baskerville Hall during his first visit to the United
States. Einstein is seen here under the umbrella held by City College President
Sidney E. Mezes, Rheinhard A. Wetzel is to their left, and on the far left
is Morris Cohen. Cohen wrote a summary of Einstein’s comments for The Campus
(“A Review of the Einstein Lectures at City College,” 29 April 1921). A lifetime
friendship between Cohen and Einstein developed from this first meeting. CCNY
Archives.