Parkinson's disease

World Parkinson's Day

Louie Louie

International Louie Louie Day

Public holidays in Costa Rica

Juan Santamaría Day, anniversary of his death in the Second Battle of Rivas. (Costa Rica)

April 11 (Eastern Orthodox liturgics)

Christian feast day:
April 11 (Eastern Orthodox liturgics)

Stanislaus of Szczepanów

Christian feast day:
Stanislaus of Szczepanów

George Selwyn (bishop of New Zealand)

Christian feast day:
George Selwyn (Anglicanism)

Guthlac of Crowland

Christian feast day:
Guthlac of Crowland

Godeberta

Christian feast day:
Godeberta

Beatification

Christian feast day:
Blessed George Gervase

Gemma Galgani

Christian feast day:
Gemma Galgani

Elena Guerra

Christian feast day:
Elena Guerra

Barsanuphius

Christian feast day:
Barsanuphius

Antipas of Pergamum

Christian feast day:
Antipas of Pergamum (Greek Orthodox Church)

Phil Garner

Phil Garner, American baseball player and manager (born 1949)

Mike Berry (singer)

Mike Berry, British singer and actor (born 1942)