May 21 in History

72 events 293 – 2024

May 21 spans 72 recorded events across recorded history — from 293 – 2024. Below is a curated digest of the most significant moments tied to this date.

By · Wikipedia

The Greenfield tornado kills 5 and injures 35 across rural Iowa, United States.

2024 — The Greenfield tornado kills 5 and injures 35 across rural Iowa, United States

Wind speeds in excess of 480 kilometres per hour (300 mph) are estimated from measurements for the third time in history.

Did you know

The Greenfield tornado occurred on May 21, 2024, and is considered one of the most destructive tornadoes in Iowa's history.

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The tornado caused over $31 million in property damage across Page, Taylor, Adams, and Adair counties.

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National Weather Service surveyors estimated maximum wind speeds of 185 mph within Greenfield, categorizing it as an EF4 tornado.

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A Doppler on Wheels portable radar unit recorded wind speeds of 309-318 mph, one of only three instances of such high wind speeds being recorded in a tornado.

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The tornado's path of destruction included the devastation of many wind turbines, highlighting the tornado's extreme intensity and destructive power.


Roman Emperors Diocletian and Maximian appoint Galerius as Caesar to Diocletian, beginning the period of four rulers known as the Tetrarchy.
Roman emperor from 284 to 305
Diocletian, nicknamed Jovius, was Roman emperor from 284 until his abdication in 305. He was born Diocles to a family of low status in the Roman province of Dalmatia. As with other Illyrian soldiers of the period, Diocles rose through the ranks of the military early in his career, serving under Aurelian and Probus, and eventually becoming a cavalry commander for the army of Emperor Carus. After the deaths of Carus and his son Numerian on a campaign in Persia, Diocles was proclaimed emperor by the troops, taking the name "Diocletianus". The title was also claimed by Carus's surviving son, Carinus, but Diocletian defeated him in the Battle of the Margus.
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293
Syracuse, Sicily, is captured by the Muslim Aghlabids after a nine-month siege.
City in Sicily, Italy
Syracuse is a city and municipality, capital of the free municipal consortium of the same name, located in the autonomous region of Sicily in Southern Italy. As of 2025, with a population of 115,636, it is the fourth most populous city in Sicily, following Palermo, Catania, and Messina.
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878
Pope John VIII gives blessings to Branimir of Croatia and to the Croatian people, considered to be international recognition of the Croatian state.
Head of the Catholic Church from 872 to 882
Pope John VIII was the bishop of Rome and ruler of the Papal States from 14 December 872 to his death. He is often considered one of the most able popes of the 9th century.
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879
Sixteen-year-old Otto III is crowned Holy Roman Emperor.
Holy Roman Emperor from 996 to 1002
Otto III was the Holy Roman emperor and King of Italy from 996 until his death in 1002. A member of the Ottonian dynasty, Otto III was the only son of Emperor Otto II and his wife Theophanu.
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996
Dušan's Code, the constitution of the Serbian Empire, is enacted by Dušan the Mighty.
14th-century Serbian set of laws
Dušan's Code is a compilation of several legal systems that was enacted by Stefan Uroš IV Dušan of Serbia in 1349. It drew upon Roman law, Byzantine law, as well as elements of customary and canon law. It was used in the Serbian Empire and the succeeding Serbian Despotate. It is considered an early constitution, or close to it; an advanced set of laws which regulated all aspects of life such as family relations, property rights, contracts, and crimes.
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1349
Henry III of Castile sends Ruy González de Clavijo as ambassador to Timur to discuss the possibility of an alliance between Timur and Castile against the Ottoman Empire.
King of Castile and León from 1390 to 1406
Henry III of Castile, called the Suffering due to his ill health, was the son of John I and Eleanor of Aragon. He succeeded his father as King of Castile in 1390.
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1403
Queen Mary I grants a royal charter to Derby School, as a grammar school for boys in Derby, England.
Queen of England and Ireland from 1553 to 1558
Mary I was Queen of England and Ireland from July 1553 and Queen of Spain as the wife of King Philip II from January 1556 until her death in 1558. She made vigorous attempts to reverse the English Reformation, which had begun during the reign of her father, King Henry VIII. Her attempt to restore to the Church the property confiscated in the previous two reigns was largely thwarted by Parliament but, during her five-year reign, more than 280 religious dissenters were burned at the stake, in what became known as the Marian persecutions, leading later commentators to label her "Bloody Mary".
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1554
In the Concert of The Hague, the Dutch Republic, the Commonwealth of England and the Kingdom of France set out their views on how the Second Northern War should end.
Treaty between England, France, and the Netherlands on the Second Northern War
The Concert of The Hague, signed on 21 May 1659, was an outline of the common stance of England, France and the Dutch Republic regarding the Second Northern War. The powers agreed that the Swedish Empire and Denmark–Norway should settle for a peace treaty based on the Treaty of Roskilde, including free navigation through The Sound and the Baltic Sea based on the Treaty of Elbing. The subsequent Dano-Swedish Peace of Copenhagen largely followed the terms dictated by the Concert of the Hague.
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1659
The Battle of Long Sault concludes after five days in which French colonial militia, with their Huron and Algonquin allies, are defeated by the Iroquois Confederacy.
1660 battle during the Beaver Wars
The Battle of Long Sault occurred over a five-day period in early May 1660 during the Beaver Wars. It was fought between French colonial militia, with their Huron and Algonquin allies, against the Iroquois Confederacy.
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1660
The nobility elect John Sobieski King of Poland and Grand Duke of Lithuania.
Noble class in the Kingdom of Poland and the Grand Duchy of Lithuania
The szlachta were the noble estate of the realm in the Kingdom of Poland, the Grand Duchy of Lithuania, and the Polish–Lithuanian Commonwealth. It was the dominating social class in the Kingdom of Poland and the Commonwealth, which was exercising political rights and power. Szlachta as a class differed substantially from the feudal nobility of Western Europe. The estate was officially abolished in 1921 by the March Constitution.
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1674
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Born on May 21

20 people 1990 – 2002
Elena Huelva
Elena Huelva
Spanish cancer activist and influencer (died 2023)
Elena Huelva Palomo was a Spanish cancer activist, influencer, and writer. Through her regular use of social media, she divulged information about Ewing sarcoma, the type of cancer she was suffering from, to a wider…
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2002
Ivan De Santis
Italian footballer
Ivan Francesco De Santis is an Italian professional footballer who plays as a defender. A centre-back, he made his professional debut on 2 November 2016, for Catania.
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1997
Sisca Folkertsma
Sisca Folkertsma
Dutch footballer
Sippie Catharine "Sisca" Folkertsma is a Dutch footballer who plays as a forward for Dutch Vrouwen Eredivisie club PSV and the Netherlands national team.
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1997
Viktoria Petryk
Viktoria Petryk
Ukrainian singer-songwriter
Viktoria Ihorivna "Vika" Petryk is a Ukrainian singer and songwriter who represented Ukraine at the Junior Eurovision Song Contest 2008, held in Limassol, Cyprus, with the song "Matrosy" ("Sailors"). She finished in…
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1997
Kevin Quinn
American actor and singer
Kevin Gerard Quinn is an American actor and musician. He is known for his starring role as Xander in the Disney Channel original series Bunk'd and for his roles in the 2016 Disney Channel Original Movie Adventures in…
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1997
Josh Allen
Josh Allen
American football player
Joshua Patrick Allen is an American professional football quarterback for the Buffalo Bills of the National Football League (NFL). A lightly regarded high school prospect, Allen began his college football career with…
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1996
Indy de Vroome
Indy de Vroome
Dutch tennis player
Indy de Vroome is a Dutch tennis player.
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1996
Karen Khachanov
Karen Khachanov
Russian tennis player
Karen Abgarovich Khachanov is a Russian professional tennis player. He has been ranked by the Association of Tennis Professionals (ATP) as high as world No. 8 in singles, which he achieved on 15 July 2019, and No. 53 in…
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1996
Diego Loyzaga
Filipino actor
Carlos Diego Loyzaga Manhilot is a Filipino model, actor and video jockey. He is known as one of the members of the male group Kapamilya Cuties.
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1995
Tom Daley
Tom Daley
English diver
Thomas Robert Daley is an English retired diver, YouTuber and television personality. He is an Olympic champion in the men's synchronised 10-metre platform event at the 2020 Olympics and double world champion in the…
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1994
Grete Gaim
Grete Gaim
Estonian biathlete
Grete Gaim is an Estonian biathlete. She competed at the Biathlon World Championships 2013, and at the 2014 Winter Olympics in Sochi, in sprint and individual.
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1993
Luke Garbutt
Luke Garbutt
English footballer
Luke Samuel Garbutt is an English professional footballer who plays as a defender for EFL League Two club Salford City. Usually a left back, he is also capable of playing as a winger. He has previously played for…
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1993
Matías Kranevitter
Matías Kranevitter
Argentine footballer
Claudio Matías Kranevitter is an Argentine professional footballer who plays as a defensive midfielder for Süper Lig club Fatih Karagümrük.
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1993
Lynn Williams
Lynn Williams
American soccer player
Lynn Biyendolo is an American professional soccer player who plays as a forward for Seattle Reign FC of the National Women's Soccer League (NWSL) and the United States national team. The NWSL's all-time leading scorer,…
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1993
Hutch Dano
American actor
Hutchings Royal Dano is an American actor and painter. He is known for playing co-lead character Zeke Falcone in the Disney XD comedy series Zeke and Luther.
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1992
Lisa Evans
Lisa Evans
Scottish footballer
Lisa Catherine Evans is a Scottish professional footballer who plays for Scottish Women's Premier League club Glasgow City and the Scotland national team. Operating as a winger or full-back, she began her senior career…
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1992
Philipp Grüneberg
German footballer
Philipp Grüneberg is a German footballer who plays as a forward for SV Lichtenberg 47.
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1992
Olivia Olson
Olivia Olson
American singer and actress
Olivia Olson is an American actress, singer-songwriter, and screenwriter, largely known for her voice roles as Vanessa Doofenshmirtz in Phineas and Ferb and Marceline the Vampire Queen in Adventure Time. She also played…
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1992
Guilherme
Guilherme
Brazilian footballer
Guilherme Costa Marques, known simply as Guilherme, is a Brazilian professional footballer who plays as a midfielder for Campeonato Brasileiro Série B club Atlético Goianiense.
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1991
Kierre Beckles
Barbadian athlete
Kierre Kamille Beckles is a Barbadian athlete specializing in the 100 metres hurdles. She competed at the 2011 and 2013 World Championships failing to advance to the semi-finals on both occasions.
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1990
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Died on May 21

20 people 2013 – 2025
Gerry Connolly
Gerry Connolly
American politician, U.S. Representative from Virginia's 11th congressional district (born 1950)
Gerald Edward Connolly was an American politician who served as the U.S. representative for Virginia's 11th congressional district from 2009 until his death in 2025. A member of the Democratic Party, he was first…
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2025
Jan A. P. Kaczmarek
Jan A. P. Kaczmarek
Polish composer (born 1953)
Jan Andrzej Paweł Kaczmarek was a Polish composer. He wrote scores for more than 70 feature films and documentaries, including Finding Neverland (2004), for which he won an Oscar and a National Board of Review Award.…
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2024
Alan Merten
Alan Merten
fifth President of George Mason University (born 1941)
Alan Gilbert Merten was the fifth president of George Mason University.
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2020
Rik Kuypers
Belgian film director (born 1925)
Rik Kuypers was a Belgian film director. He directed 29 films between 1947 and 1981. He co-directed the film Seagulls Die in the Harbour, which was entered into the 1956 Cannes Film Festival.
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2019
Binyavanga Wainaina
Binyavanga Wainaina
Kenyan writer (born 1971)
Kenneth Binyavanga Wainaina was a Kenyan author, journalist and 2002 winner of the Caine Prize for African Writing. In 2003, he became the founding editor of Kwani? literary magazine, launched in Kenya, East Africa. In…
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2019
Nick Menza
Nick Menza
American drummer and songwriter (born 1964)
Nicholas Menza was an American musician who was the drummer of the thrash metal band Megadeth from 1989 to 1998. He played drums on four of Megadeth's albums: Rust in Peace (1990), Countdown to Extinction (1992),…
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2016
Annarita Sidoti
Annarita Sidoti
Italian race walker (born 1969)
Annarita Sidoti was an Italian race walker.
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2015
Twinkle
Twinkle
English singer-songwriter (born 1948)
Lynn Annette Ripley, better known by the stage name Twinkle, was an English singer-songwriter. She had chart success in the 1960s with her songs "Terry" and "Golden Lights".
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2015
Jassem Al-Kharafi
Jassem Al-Kharafi
Kuwaiti businessman and politician, 8th Kuwaiti Speaker of the National Assembly (born 1940)
Jassem Al-Kharafi, was a Kuwaiti oligarch who was the speaker of the Kuwaiti National Assembly from 1999 to 2011. In his capacity as Speaker in 2006, Al-Kharafi played a critical role in the ascension of Sheikh Sabah…
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2015
Fred Gladding
Fred Gladding
American baseball player and coach (born 1936)
Fred Earl Gladding was an American professional baseball player and coach. He was a right-handed pitcher for all or parts of 13 seasons (1961–1973) with the Detroit Tigers and Houston Astros. He was born in Flat Rock,…
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2015
Louis Johnson
Louis Johnson
American bass player and producer (born 1955)
Louis Johnson was an American bass guitarist. Johnson was best known for his work with the group the Brothers Johnson and his session playing on several hit albums of the 1970s and 1980s, including the best-selling…
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2015
Tunku Annuar
Malaysian son of Badlishah of Kedah (born 1939)
Tunku Annuar ibni Almarhum Sultan Badlishah was a member of the Kedah royal family and the Chairman of the Regency Council of the Malaysian state of Kedah from December 2011 until his death in May 2014. He was the son…
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2014
Johnny Gray
Johnny Gray
American baseball player (born 1926)
John Leonard Gray was an American professional baseball pitcher, who played in Major League Baseball (MLB) for the Philadelphia Athletics / Kansas City Athletics, Cleveland Indians, and Philadelphia Phillies in all or…
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2014
Jaime Lusinchi
Jaime Lusinchi
Venezuelan physician and politician, President of Venezuela (born 1924)
Jaime Ramón Lusinchi was the president of Venezuela from 1984 to 1989. His term was characterized by an economic crisis, growth of the external debt, populist policies, currency depreciation, inflation and corruption…
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2014
Alireza Soleimani
Alireza Soleimani
Iranian wrestler (born 1956)
Alireza Soleimani Karbalaei was an Iranian heavyweight freestyle wrestler. He was the first Iranian to win the world superheavyweight title, which he achieved in 1989. He served as the flag bearer for Iran at the 1992…
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2014
Count Christian of Rosenborg
member of the Danish royal family (born 1942)
Count Christian of Rosenborg was a member of the Danish royal family. Born Prince Christian of Denmark, from 1947 he was third in the line of line of succession until the constitution was changed in 1953 to allow…
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2013
Frank Comstock
Frank Comstock
American trombonist, composer, and conductor (born 1922)
Frank G. Comstock was an American composer, arranger, conductor, and trombonist. For television, Comstock wrote and arranged music for major situation comedies and variety shows. His theme and incidental music for Rocky…
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2013
Cot Deal
Cot Deal
American baseball player and coach (born 1923)
Ellis Ferguson "Cot" Deal was an American pitcher and coach in Major League Baseball. Listed at 5 ft 10.5 in (1.79 m), 185 lb (84 kg), Deal was a switch-hitter and threw right-handed. A native of Arapaho, Oklahoma, he…
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2013
Leonard Marsh
American businessman, co-founded Snapple (born 1933)
Leonard Marsh was an American businessman who co-founded the Snapple Beverage Corporation in 1972. Marsh co-founded Snapple, which was originally known as Unadulterated Food Products, with his brother-in-law, Hyman…
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2013
Bob Thompson
Bob Thompson
American pianist and composer (born 1924)
Robert Lamar Thompson was a composer, arranger, and orchestra leader from the 1950s through the 1980s. Active in Los Angeles, Thompson was a recording artist for RCA Victor and Dot Records, scored film and television…
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2013
See all deaths on May 21
Related questions

More questions about May 21

What happened on May 21?

A featured event on this date is 2024: The Greenfield tornado kills 5 and injures 35 across rural Iowa, United States. Wind speeds in excess of 480 kilometres per hour (300 mph) are estimated from measurements for the third time in history. This page also lists 72 events from other years on the same day.

Why is May 21 remembered in history?

May 21 brings together events, births, and deaths across many eras, which makes it useful for seeing how one calendar date connects different historical turning points.

Who was born on May 21?

Notable birthdays on this date include Elena Huelva, Ivan De Santis, Sisca Folkertsma.

See birthdays

Who died on May 21?

Notable deaths on this date include Gerry Connolly, Jan A. P. Kaczmarek, Alan Merten.

See deaths
Short answer

What happened on May 21 in history?

On May 21, one notable event in history was 2024: The Greenfield tornado kills 5 and injures 35 across rural Iowa, United States. Wind speeds in excess of 480 kilometres per hour (300 mph) are estimated from measurements for the third time in history..

This date currently highlights 72 recorded events on thisDay.info, spanning 293 – 2024.

DateMay 21
Featured year2024
Locationexcess of
Events listed72

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