World Tuna Day

World Tuna Day

Harry Potter

International Harry Potter Day

List of Teachers' Days

Teachers' Day (Iran) (this date is non-Gregorian and may change according to the March Equinox, see List of observances set by the Solar Hijri calendar)

National Education Day (Indonesia)

Indonesia National Education Day

Polish National Flag Day

Flag Day (Poland)

Public holidays in Bhutan

Birth Anniversary of Third Druk Gyalpo (Bhutan)

Dos de Mayo Uprising

Anniversary of the Dos de Mayo Uprising (Community of Madrid, Spain)

Ridván

The last day of the Festival of Ridván (Baháʼí Faith) (this date is non-Gregorian and may change according to the March equinox, see List of observances set by the Baháʼí calendar)

May 2 (Eastern Orthodox liturgics)

Christian feast day:
May 2 (Eastern Orthodox liturgics)

William Tirry

Christian feast day:
William Tirry (Catholic Church)

Wiborada

Christian feast day:
Wiborada (Catholic Church)

Vietnamese Martyrs

Christian feast day:
Joseph Luu Van Nguyen (Catholic Church)

Germanus of Normandy

Christian feast day:
Germanus of Normandy

Boris I of Bulgaria

Christian feast day:
Boris I of Bulgaria (Bulgarian Orthodox Church)

Bolesław Strzelecki

Christian feast day:
Bolesław Strzelecki (Catholic Church)