Photo by Sameer A. Khan

It’s official: Princeton’s 2012-13 academic year began this morning with the start of fall classes. Members of the Class of 2016 were welcomed to campus in a series of events that included the Pre-rade and the Freshman Step Sing, pictured above, Sept. 9. There are 1,357 students in the incoming class, representing 48 states plus Washington, D.C., and 57 countries.