History shows that uchiwa has existed since the appearance of civilization, and was adopted in Japan during the 7th century, the idea of developing it into a folding fan, Sensu, to make it easy to carry around was invented around the 8th century.
このようにうちわは文明発祥時から存在する古い物であり、日本へは7世紀頃に伝来したが、うちわを折り畳んで携帯に便利な扇子にするというアイデアは、ずっと時代が下り、8世紀頃の日本で発明された。