Day of Neutrality

Day of Neutrality (Turkmenistan)

Constitution Day

Constitution Day (Russia)

December 12 (Eastern Orthodox liturgics)

Christian feast day:
December 12 (Eastern Orthodox liturgics)

Our Lady of Guadalupe

Christian feast day:
Our Lady of Guadalupe

Vicelinus

Christian feast day:
Vicelinus

Peter the Aleut

Christian feast day:
Peter the Aleut

Ida of Nivelles

Christian feast day:
Ida of Nivelles

Thomas Holland (Jesuit)

Christian feast day:
Thomas Holland

Finnian of Clonard

Christian feast day:
Finnian of Clonard

Edburga of Minster-in-Thanet

Christian feast day:
Edburga of Minster-in-Thanet

Jane Frances de Chantal

Christian feast day:
Jane Frances de Chantal

Corentin of Quimper

Christian feast day:
Corentin of Quimper

Grandmaster (chess)

Indian Grandmaster Gukesh Dommaraju became the undisputed World Chess Champion in a tournament held in Singapore, making him the 18th and the youngest champion in chess history.

Maʻafu Tukuiʻaulahi

Maʻafu Tukuiʻaulahi, Tongan politician and military officer, Deputy Prime Minister (born 1955)

Bernie Fowler

Bernie Fowler, American politician and environmental advocate (born 1924)