The Carp has always been regarded for its determination and strong will. This notion of the carp being a symbol of strength and tenacity can be traced back to a in China where a saying goes that a carp can swim against the current up the fast-flowing Hwang Ho river to become a dragon. They are frequently shown in Japanese artwork as swimming up waterfalls or strong river currents. Throughout all of Japan, the Koi Nobori is displayed across the yards of each family's home, about a week before May 5th to a week after. On Japanese Boy's day, May 5th of each year these wind socks are flown in celebration of the safety, health and strength of the boys of each family in Japan. The colorful sight (especially when viewed from the Bullet Train) is incredible as they are seen strewn across the countryside. "Colorful carp streamers" are famous symbol to celebrate "Children's day". Many parents display them hoping that children will grow up with courage and wisdom. Koi=Car