It is a traditional festival that originates in "Matsubayashi", a parade that is an imitation of Kyuchu Sanga （going to the Imperial Palace to offer one's congratulations, for example, New Year's Greetings）.〔【出典】Hiragana Times, 2001年5月号◆【出版社】株式会社ヤック企画 〕"HT175003", "2374346"
Emperor's Birthday （December 23）: On this day the Emperor, with the Empress, receives the congratulations of the people at the Imperial Palace. （The Emperor was born on December 23, 1933.）"NIPO-313", "2290552"
On the Emperor's Birthday, many people visit the Imperial Palace."A0000449", "2420983"
The present Imperial Palace was built on the site of Edo Castle, headquarters of the feudal government in the Tokugawa Era. A part of it can be visited on the second day of each year and on the Emperor's birthday, at which times the people are allowed to enter to offer their congratulations to the Emperor."NIPO-352", "2499071"