Ellevte februar:
Japan:
Kiku Honda was a very traditional man. Even if those traditions had a habit of changing.
Like the National Foundation Day for example. It started out during the Meiji period and was then, as now, a celebration of the accession of his first Emperor, Emperor Jimmu on 11 February 660 BC and his country's foundation, according to myths. It was then a way for his then-Emperor Meiji, to cement his right to be the one, true ruler of Japan because he publicly linked his rule to that of Jimmu whom according to myths was linked to the Sun Goddess Amaterasu. It was considered one of the four major holidays with festivals and large parades.
Then, after the surrender in World War II, the holiday was abolished.
It wasn't re-established before 1966.
Author's notes:
I don't own Hetalia