World Lymphoma Awareness Day

World Lymphoma Awareness Day (International)

National Hispanic Heritage Month

The beginning of National Hispanic Heritage Month, celebrated until October 15 (United States)

German-American Day

The beginning of German American Heritage Month, celebrated until October 15

International Day of Democracy

International Day of Democracy

Grito de Dolores

Cry of Dolores, celebrated on the eve of Independence Day (Mexico).

September 15 (Eastern Orthodox liturgics)

Christian feast day:
September 15 (Eastern Orthodox liturgics)

Our Lady of Sorrows

Christian feast day:
Our Lady of Sorrows

Saint Nicomedes

Christian feast day:
Nicomedes

Nicetas the Goth

Christian feast day:
Nicetas the Goth

Saint Mirin

Christian feast day:
Mirin

Mamilian of Palermo

Christian feast day:
Mamilian of Palermo

Saint Dominic in Soriano

Christian feast day:
Saint Dominic in Soriano (formerly)

James Chisholm (priest)

Christian feast day:
James Chisholm (Episcopal Church)

Catherine of Genoa

Christian feast day:
Catherine of Genoa

Aprus of Toul

Christian feast day:
Aprus (Èvre) of Toul