During the month of May, a stroll through a typical neighborhood in Japan reveals an unusual and interesting sight. Flying fish. More specifically, many households with a boy(s) in the family attach carp streamers to something similar to a flagpole so that they flutter high above the roofs of their homes. These streamers are traditionally set up on May 5, or “Tango no sekku,” and symbolize the hope for the good health of the boys. (Likewise, March 3 is similarly reserved for “Momo no sekku,” or Girls’ Day.) In addition to carp streamers and, depending on the region, other items have also traditionally been set up, such as armored suits, warrior helmets, and/or paper lanterns.

Tango no sekku dates back to the Nara era (710 - 794), when people held events to fend off illness and misfortune on the day of “Tango,” which is the 5th day of months that mark the transition period between seasons. These events evolved into the current form during the Kamakura Era (1192 - 1333), when a samurai government was in power. Back then, samurai families prayed for health and successful careers for their boys.

While fewer and fewer homes with boys set up carp streamers and other celebratory items nowadays, what has not been changed throughout history are parents hoping for the health of their children.