December 20 Anniversaries

International Human Solidarity Day

World Observances

What Is International Human Solidarity Day? December 20 is "International Human ...

Foghorn Day

Historical Anniversaries

What Is Foghorn Day? Every December 20th is "Foghorn Day" (霧笛記念日, Muteki Kinenbi...

Department Store Opening Day

Historical Anniversaries

What Is Department Store Opening Day? Every December 20th is "Department Store O...

Road Traffic Act Enforcement Day

Historical Anniversaries

What Is Road Traffic Act Enforcement Day? December 20 marks the day Japan's Road...

Yellowtail (Buri) Day

Food Days

What Is Yellowtail Day? December 20 is "Buri no Hi" -- Yellowtail Day -- in Japa...

Hate no Hatsuka -- the Last Twentieth

Seasonal Events

What Is Hate no Hatsuka? December 20 is "Hate no Hatsuka," literally "the twenti...

Coelacanth Day

Other

What Is Coelacanth Day? December 20 is "Coelacanth Day" in Japan. On this date i...