About the day » Sunday May 20, 1973Calender converter

• Michiel Jochem Boxhoorn, Den Helder († 1973)
• Brian Keith Boneschans, Rock Rapids, Lyon County, Iowa († 2008)
• Bianca Jellema († 2012)
• Kirbie Lester Ebanks, Cayman Brac, Cayman Islands († 1997)
• Henricus Johannes Pennings, Leiderdorp, ZUI, Nederland († 1975)
• Brian Paul van Meeteren, Jacksonville, Duval County, Florida († 1973)
• Christine Ann Rutgers
• Katrien Wever, Amsterdam
• Bianca Jellema († 2012)
• Nicolina Catharina Kieboom, Werkendam

• Auke Brouwer (76), -
• Abraham Voorwinden (77), Zwijndrecht, Zuid-Holland, Nederland
• Alexine Françoise Joséphine Marie Gerardine Nackom (77), Sint-Truiden, België
• Hoogstraten (78), Houthem (vakantie)
• Cas Eugene Horton (65), Russellville, Franklin, Alabama
• Annie Betts Galloway (92)
• Aaltje Zwarteveen (65), Utrecht, Nederland
• Augusta K. Braun (77), Chicago, Cook County, Illinois, Verenigde Staten
• Catharina Maria Johanna ( To ) van Boxtel (58), Goirle, Noord-Brabant, Nederland
• Andreas Cornelius (Andrew) Dees (79), Cedar Grove, Sheboygan, Wisconsin Territory, Verenigde Staten

• 1970 » Terrell Brandon, American basketball player
• 1971 » Šárka Kašpárková, Czech triple jumper and coach
• 1971 » Tony Stewart, American race car driver
• 1972 » Busta Rhymes, American rapper, producer, and actor
• 1972 » Christophe Dominici, French rugby player
• 1972 » Michael Diamond, Australian shooter
• 1973 » Nathan Long, Australian rugby league player
• 1974 » Allison Amend, American novelist and short story writer
• 1974 » Shiboprosad Mukherjee, Indian film director, writer and actor
• 1975 » Juan Minujín, Argentinian actor, director, and screenwriter

• 1961 » Josef Priller, German colonel and pilot (b. 1915)
• 1964 » Rudy Lewis, American singer (b. 1936)
• 1971 » Waldo Williams, Welsh poet and academic (b. 1904)
• 1973 » Jarno Saarinen, Finnish motorcycle racer (b. 1945)
• 1973 » Renzo Pasolini, Italian motorcycle racer (b. 1938)
• 1975 » Barbara Hepworth, English sculptor and lithographer (b. 1903)
• 1976 » Héctor Gutiérrez Ruiz, Uruguayan politician (b. 1934)
• 1976 » Syd Howe, Canadian ice hockey player (b. 1911)
• 1976 » Zelmar Michelini, Uruguayan journalist and politician (b. 1924)
• 1989 » John Hicks, English economist and academic, Nobel Prize laureate (b. 1904)

• Koningin Juliana (Huis van Oranje-Nassau) was from September 4, 1948 till April 30, 1980 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
• In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
• The Netherlands had about 13.4 million citizens.
• January 11 » Major League Baseball owners vote in approval of the American League adopting the designated hitter position.
• January 22 » The Supreme Court of the United States delivers its decisions in Roe v. Wade and Doe v. Bolton, legalizing elective abortion in all fifty states.
• March 25 » Ireland gets a new newspaper called Sunday World.
• December 15 » John Paul Getty III, grandson of American billionaire J. Paul Getty, is found alive near Naples, Italy, after being kidnapped by an Italian gang on July 10.
• December 15 » The American Psychiatric Association votes 13–0 to remove homosexuality from its official list of psychiatric disorders, the DSM-II.
• December 17 » Thirty passengers are killed in an attack by Palestinian terrorists on Rome's Leonardo da Vinci–Fiumicino Airport.

The temperature on May 20, 1973 was between 12.0 °C and 20.1 °C and averaged 15.6 °C. There was 5.3 mm of rain during 4.3 hours. There was 8.3 hours of sunshine (52%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest.