September 21 Anniversaries

World Alzheimer's Day

World Observances

What Is World Alzheimer's Day? Every September 21, the world observes "World Alz...

International Day of Peace

World Observances

What Is the International Day of Peace? September 21 is the "International Day o...

World Gratitude Day

World Observances

What Is World Gratitude Day September 21 is "World Gratitude Day," a day observe...

Fashion Show Day

Historical Anniversaries

What Is Fashion Show Day? Every September 21st is "Fashion Show Day" (ファッションショーの...

Gateau Chocolat Day

Food Days

What Is Gateau Chocolat Day September 21 is "Gateau Chocolat Day" in Japan, esta...

Shoelace Day (Caterpyran Day)

Wordplay Anniversaries

What Is Shoelace Day September 21 is "Shoelace Day," also known as "Caterpyran D...