Japan’s period of rapid economic growth from the 1960s to the 1970s was a time of great events such as the Tokyo Olympics and the Osaka Expo. It was also a time characterized by vitality with the opening of the Tōkaidō Shinkansen bullet train and the spread of ownership of television sets and automobiles. Despite all the positives, one negative aspect cannot be ignored: pollution became a serious problem.— Jreibun