May 15 Anniversaries

International Day of Families

World Observances

What Is the International Day of Families? May 15 is the International Day of Fa...

Okinawa Reversion Day

Historical Anniversaries

What Is Okinawa Reversion Day? Every May 15th is "Okinawa Reversion Day" (沖縄復帰記念...

Nylon Stockings Day

Historical Anniversaries

What Is Nylon Stockings Day? Every May 15th is "Nylon Stockings Day" (ストッキングの日, ...

Yogurt Day (Yōguruto no Hi)

Food Days

What Is Yogurt Day? May 15 is "Yogurt Day," established by Meiji Dairies (now Me...

Aoi Matsuri

Seasonal Events

What Is Aoi Matsuri? Aoi Matsuri, held in Kyoto every year on May 15, is the ann...