Expo ‘70 (日本万国博覧会, Nihon Bankoku Hakuran-kai) was a world’s fair held in Suita, Osaka Prefecture, Japan between March 15 and September 13, 1970. Its theme was “Progress and Harmony for Mankind.” In Japanese, Expo ‘70 is often referred to as Osaka Banpaku (大阪万博, Ōsaka Banpaku). It was the first world’s fair held in Japan.