It was 51 years ago, on April 28, that Expo 67 opened in Montreal, ushering in a summer of celebration for Canada’s 100th birthday. The World’s Fair featured pavilions from 60 nations showcasing “Man and His World.” More than 50 million visitors passed through the grounds over six months, including familiar faces like Queen Elizabeth, Jackie Kennedy and Bing Crosby. In this editorial from April 22, 1967, The Catholic Register put the expectations of Expo into perspective: