An analysis of nearly 38,000 American high-school yearbook photos from the 1900s to the 2010s shows the gradual shift from serious to lighthearted expressions, reports Steve Dent for Engadget.

Sports were everything to me,” recalled Michael Messner as he reflected on his years growing up in Salinas. Michael’s father, ...

The high school year book of UnitedHealth ... GI,' 'squeej' and '30 degrees.' His yearbook quote is from 'videogamedunkey,' or 'dunkey,' an American YouTuber known for his YouTube skits and ...