September 14 Anniversaries

OPEC Founding Day

World Observances

What Happened on This Day: OPEC Was Founded September 14th marks the day in 1960...

Rosetta Stone Decipherment Day

Historical Anniversaries

What Happened on This Day: The Rosetta Stone Was Deciphered September 14th marks...

Yosyusyounin Suratanmen Day

Industry Days

What Is Yosyusyounin Suratanmen Day? September 14th is "Yosyusyounin Suratanmen ...

Cosmos Day (Kosumosu no Hi)

Other

What Is Cosmos Day? September 14th is "Cosmos Day" (Kosumosu no Hi) — a day esta...

September Valentine (Sebutenbā Barentain)

Other

What Is September Valentine? Every year on September 14th, Japan observes "Septe...

Green Day (Gurīn Dē)

Other

What Is Green Day? September 14th is "Green Day" (Gurīn Dē) in Japan — a day tha...