A team at the University of California, Berkeley analyzed about a hundred years’ worth of yearbook photos and learned people are smiling more these days.
Yearbooks can certainly hold a wealth of personal memories, but they also offer great insights into how society’s likes and norms have changed over the decades.
A team at the University of California, Berkeley analyzed about a hundred years’ worth of the often static and sometimes awkward student photos and came up with some rather interesting results.
One of the more noticeable changes is people today are
