Soap was brought to Japan from Spain and Portugal in the Azuchi-Momoyama period. It was not produced domestically until the Meiji era, and was a luxury good during the Edo period. In the summer traveling salesmen would sell sabondama (now shabondama (soap bubbles)). It states that, "Sabon powder was mixed in water, and then a thin tube was used to blow the liquid into air bubbles," but this "sabon powder" was not the expensive imported soap, but was a substitute substance made by aroid stem, etc.