Japan celebrate National Foundation Day annually on February 11.
First emperor of Japan,"Jimmu", who established his capital in Yamato in 660 BC.In his memory,this day was celibrated.
National Foundation Day become an official holiday in 1872. In the Meiji period, when Japan switched to the Gregorian calendar from its lunisolar calendar, the new "official" holiday was proclaimed.
This holiday was called as the 'Empire Day'(Kigensetsu) before 1872, but the Meiji Emperor may have wanted to establish this holiday so he rename this day as the National Foundation Day.
Large parades and festivals, in its time,considered one of the four major holidays of Japan.
This day celibrated all over Japan,but after World War II,this day was stopped to celibrate.In 1966 this day was again made a National Foundation Day.