Although there is little information, it is likely that small scale celebrations were held within the palace most years (with offerings and feasts).

On 6th November 1868 the Emperor's Birthday was finally made into a national holiday🙌

#天皇誕生日 #emperorsbirthday #Japan

In Japan, today, February 23, is a national holiday called Emperor's Birthday (Tenno Tanjobi in Japanese). #emperorsbirthday #nationalholiday #holiday
本日2月23日は国民の祝日・天皇誕生日(Emperor's Birthday)です。 #emperorsbirthday #nationalholiday #holiday
In Japan, today, February 23, is a national holiday called Emperor's Birthday (Tenno Tanjobi in Japanese). #emperorsbirthday #nationalholiday #holiday #fedibird
本日2月23日は国民の祝日・天皇誕生日(Emperor's Birthday)です。 #emperorsbirthday #nationalholiday #holiday #fedibird
In Japan, today, February 23, is a national holiday called Emperor's Birthday (Tenno Tanjobi in Japanese). #emperorsbirthday #nationalholiday #holiday
本日2月23日は国民の祝日・天皇誕生日(Emperor's Birthday)です。 #emperorsbirthday #nationalholiday #holiday
In Japan, today, February 24, is a substitute holiday for Emperor's Birthday (Tenno Tanjobi in Japanese). #emperorsbirthday #substituteholiday #holiday
(国民の祝日・天皇誕生日の)振替休日の月曜日☆ #emperorsbirthday #substituteholiday #holiday
In Japan, today, February 24, is a substitute holiday for Emperor's Birthday (Tenno Tanjobi in Japanese). #emperorsbirthday #substituteholiday #holiday #fedibird