World Tuberculosis Day

World Tuberculosis Day (International)

Arbor Day

National Tree Planting Day (Uganda)

Right to truth

International Day for the Right to the Truth Concerning Gross Human Rights Violations and for the Dignity of Victims

Day of Remembrance for Truth and Justice

Day of Remembrance for Truth and Justice (Argentina)

March 24 (Eastern Orthodox liturgics)

Christian feast day:
March 24 (Eastern Orthodox liturgics)

Walter Hilton

Christian feast day:
Walter Hilton (Church of England)

Paul Couturier

Christian feast day:
Paul Couturier (Church of England)

Óscar Romero

Christian feast day:
Óscar Romero (Catholic Church, Anglican Communion, Lutheranism)

Maria Karłowska

Christian feast day:
Maria Karłowska

Mac Cairthinn of Clogher

Christian feast day:
Mac Cairthinn of Clogher

Hildelith

Christian feast day:
Hildelith of Barking

Catherine of Vadstena

Christian feast day:
Catherine of Vadstena

Mel Schilling

Mel Schilling, Australian TV personality and coach (born 1972)

Tracy Kidder

Tracy Kidder, American writer (born 1945)

Biruté Galdikas

Biruté Galdikas, Canadian primatologist and conservationist (born 1946)