Holidays and observances
May 21
add
search
Holidays added through this app are in bold
×
Holidays and observances
Afro-Colombian Day
(
Colombia
)
Christian
feast day
:
Blessed
Adílio Daronch
and
Manuel Gómez González
Blessed
Franz Jägerstätter
Earliest day on which
Corpus Christi
can fall, while June 24 is the latest; held on Thursday after
Trinity Sunday
(often locally moved to Sunday). (
Roman Catholic Church
)
Eugène de Mazenod
Helena of Constantinople
, also known as "Feast of the Holy Great Sovereigns Constantine and Helen,
Equal-to-the-Apostles
." (
Eastern Orthodox Church
,
Anglican Communion
)
Blessed
Hemming of Turku
[
1
]
John Elliot
(
Episcopal Church
)
Saints of the Cristero War
, including
Christopher Magallanes
[
1
]
May 21 (Eastern Orthodox liturgics)
Circassian Day of Mourning
(
Circassians
)
Day of Patriots and Military
(Hungary)
Independence Day
, celebrates the
Montenegrin independence referendum
in 2006, celebrated until the next day. (
Montenegro
)
International Tea Day
(
International
)
[
2
]
Navy Day
(
Chile
)
Saint Helena Day
, celebrates the discovery of
Saint Helena
in 1502. (
Saint Helena, Ascension and Tristan da Cunha
)
World Day for Cultural Diversity for Dialogue and Development
(
International
)
[
2
]
^
a
b
Martyrologium Romanum (2004)
. Vatican City: Administrationem Patrimonii Sedis Apostolicae in Civitate Vaticana. 2004. pp.
295–
296
. Retrieved
13 May
2026
.
^
a
b
"International Days"
.
www.un.org
. 6 January 2015
. Retrieved
2 January
2021
.