Died On May 21st

The only child of Henry V, Henry VI of England served as the king of England for almost 40 years. He also served as the disputed king of France between 1422 and 1453, becoming the only English monarch to serve as the king of France. He founded educational institutions like Eton College, All Souls College, Oxford, and King's College, Cambridge.

Phineas Gage was a railroad construction foreman. He is best remembered for surviving an accident which destroyed much of the left frontal lobe of his brain; during the accident, a large iron rod was driven through his head. Gage's personality was said to have changed after the accident, which contributed immensely to studies about the brain's role in determining personality.

Jane Addams was an American social worker, reformer, settlement activist, public administrator, sociologist, and author. Addams was a prominent leader in the history of women's suffrage and social work in the USA. She is credited with co-founding one of America's most popular settlement houses, the Hull House in Chicago. Addams is also credited with co-founding the American Civil Liberties Union.

Dancer, choreographer, and social activist Katherine Dunham was also a qualified anthropologist. She experimented with various ritual dances, and her innovations included a ballet performance based on Caribbean dance. She also pioneered the Dunham Technique of dance pedagogy and used the pen-name Kaye Dunn to write several works.

Venustiano Carranza was one of the most important leaders of the Mexican Revolution, which transformed the Mexican government and culture. A powerful and influential person, Carranza served as the head of state for two years before serving as the 44th president of Mexico from 1916 to 1920.

Social philosopher and author Eric Hoffer was rendered half-blind at 7 due to an accident but regained his sight at 15. Orphaned in his 20s, he took up odd jobs, and once even contemplated suicide. His first book, The True Believer, catapulted him to fame, and he never looked back.

Aviation pioneer and aircraft designer Geoffrey de Havilland is best remembered for his double-engine warplane Mosquito and the jet airliner Comet. He was part of the Royal Flying Corps and had been knighted for his achievements. He was also the founder of the De Havilland Aircraft Company.

A major figure of The Parachute Regiment, which was operational during World War II, British Army airborne officer John Frost was also a two-time Distinguished Service Order awardee. He led campaigns and operations in places such as Malta, Libya, Sicily, and Italy, before retiring to focus on farming.

Born in Scotland, Williamina Fleming moved to the U.S. with her husband, where she began working as a housekeeper for Harvard Observatory director Edward C. Pickering. Pickering secured her a job at the observatory, and Fleming went on to establish a classification and cataloguing system for stars.

Chevalier d'Éon not just fought for France in the Seven Years' War but was also a spy. Interestingly, he led the first half of his life as a man and the second half as a woman. In his unpublished memoir, he claimed he was a woman raised as a man.

Niki de Saint Phalle was a French-American painter, sculptor, and filmmaker. She gained prominence as a monumental sculptor as not many women were renowned for their skills as monumental sculptors. Also remembered for her social work, Niki was one of the earliest artists to spread awareness about AIDS through art. She also wrote extensively in English and French.

James Franck was a German physicist. Along with fellow physicist Gustav Hertz, he jointly received the Nobel Prize for Physics in 1925. He had a prominent academic career and served as the director of the Second Institute for Experimental Physics at the University of Göttingen. He later moved to USA and participated in the Manhattan Project during World War II.

Tommaso Campanella was an Italian Dominican friar, philosopher, astrologer, and poet. His heterodox views often brought him into conflict with the authorities, and he was imprisoned for several years. In prison, he wrote The City of the Sun, a utopia describing an egalitarian theocratic society. He also defended astronomer Galileo Galilei in his first trial. 

Austrian composer Franz von Suppé was a major figure of the 19th-century light music in both Austria and Germany. He mostly performed at Viennese theaters such as Theater an der Wien. Some of his best-known works are Leichte Kavallerie, or Light Cavalry, and Dichter und Bauer, or Poet and Peasant.

Known as The Great Montrose, James Graham, 1st Marquess of Montrose was not just a Scottish nobleman and military leader but also a talented poet. He won many battles for Charles I but was defeated in the Battle of Carbisdale, following which he was hanged to death in the Edinburgh marketplace.

Christian Jürgensen Thomsen was a Danish antiquarian best remembered for developing early archaeological methods and techniques. In 1816, he was selected as the head of an organization, which later became the National Museum of Denmark. Christian Jürgensen Thomsen is credited with mentoring future archaeologists like Bror Emil Hildebrand and J. J. A. Worsaae.  

Sun Quan was the founder of Wu during the tripartite division of China. He went on to reign as the emperor of Eastern Wu from 229 to 252 AD. Today, he is known as a playable character in popular video games, such as the Warriors Orochi video game series. He has also been portrayed in TV series like Three Kingdoms.