The Emperor's Birthday in Japan
The Emperor's Birthday in Japan is held on February 23. Birthday of Naruhito, the current Emperor of Japan. This event in the third decade of the month February is annual. 
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Naruhito (徳仁, born 23 February 1960) is Emperor of Japan. He acceded to the Chrysanthemum Throne on 1 May 2019, beginning the Reiwa era, following the abdication of his father, Akihito.
He is the 126th monarch according to Japan's traditional order of succession.
Tennō tanjōbi is a national holiday in the Japanese calendar. The date of this event is determined by the birth day of the current Japanese emperor.
Similar holidays and events, festivals and interesting facts
Cat Day in Japan on February 22
Kitano Baika-sai or "Plum Blossom Festival" on February 25 (Kitano Tenman-gū Shrine, Kyoto, Japan);
National Day of Struggle for Peace or Bikini Day in Japan on March 1
Omizu-tori in Japan on March 1 (お水取り or “Getting Water” is a Buddhist festival that takes place in the Nigatsu-do Temple, which is part of the Todai-ji Temple, located in the city of Nara, celebrated from March 1-14);
Girls Day or Hinamatsuri in Japan on March 3 (Momo-no Sekku);
Peach Blossom Day and Peach Blossom Festival in Japan on March 3
Ear Day in Japan on March 3 (Mimi No Hi)
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