It is said that the origin of slipper firstly appeared in Japan in the beginning of Meiji era (1868-1912), which was the time Japan was opening its country to the world and having more people visited from outside, especially from Western countries. However, those visitors of course walked straight into the houses or hotel rooms without taking their shoes off. Japanese people worried that the floor would eventually get dirty and the tatami would be damaged. Slipper was devised to deal with those problems and to welcome people who came from different cultural background.