About the day » Sunday September 23, 1973Calender converter

• Mark van Os de Man († 1994)

• Broor Pieters Kloosterman (86)
• Arnoldus Willems van Bruggen (92), Boornbergum
• Anna Maria Peggen (82), Herkenbosch, Limburg, Netherlands
• Catharina Elisabeth van Laerhoven (57), Tilburg, North Brabant, Netherlands
• Arnoldus van Bruggen (92), Boornbergum, Friesland, Nederland
• Bertha Regina Magg (91), Prairie City, Jasper, Iowa, Verenigde Staten
• Edelberto Back (46), São Martinho, Santa Catarina, Brasil
• Ada Louise May Medbury (77), Canning, Western Australia
• Cornelia Brand (94), Mijdrecht
• Cornelia Brand (94), Mijdrecht (UT NL)

• 1971 » Eric Montross, American basketball player and sportscaster
• 1971 » Moin Khan, Pakistani cricketer and coach
• 1972 » Alistair Campbell, Zimbabwean cricketer
• 1972 » Jermaine Dupri, American rapper and producer
• 1972 » Karl Pilkington, English actor and producer
• 1972 » Sarah Bettens, Belgian singer-songwriter and guitarist
• 1973 » Ingrid Fliter, Argentinian pianist
• 1973 » Vangelis Krios, Greek footballer and coach
• 1974 » Ben Duckworth, Australian rugby league player
• 1974 » Matt Hardy, American wrestler

• 1967 » Stanislaus Zbyszko, Polish wrestler and strongman (b. 1879)
• 1968 » Pio of Pietrelcina, Italian priest and saint (b. 1887)
• 1971 » James Waddell Alexander II, American mathematician and topologist (b. 1888)
• 1973 » Pablo Neruda, Chilean poet and diplomat, Nobel Prize laureate (b. 1904)
• 1974 » Cliff Arquette, American actor and comedian (b. 1905)
• 1974 » Robbie McIntosh, Scottish drummer (b. 1950)
• 1978 » Lyman Bostock, American baseball player (b. 1950)
• 1979 » Catherine Lacey, English actress (b. 1904)
• 1981 » Chief Dan George, Canadian actor, author, and poet (b. 1899)
• 1987 » Bob Fosse, American actor, dancer, choreographer, and director (b. 1927)

1. Jan
2. Johannes
3. Jeroen
4. Peter
5. Robert
6. Marcel
7. Marco
8. Michael
9. Mark
10. Richard
11. Patrick
12. Cornelis
13. Hendrik
14. David
15. Dennis
16. Pieter

1. Sandra
2. Bianca
3. Maria
4. Johanna
5. Miranda
6. Monique
7. Wendy
8. Esther
9. Ingrid
10. Anna
11. Jennifer
12. Karin
13. Natasja
14. Nicole
15. Patricia
16. Saskia

• 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 7 » In his second shooting spree of the week, Mark Essex fatally shoots seven people and wounds five others at Howard Johnson's Hotel in New Orleans, Louisiana, before being shot to death by police officers.
• May 5 » Secretariat wins the 1973 Kentucky Derby in 1:59​⁄₅, an as-yet unbeaten record.
• August 5 » Mars 6 is launched from the USSR.
• September 23 » Argentine general election: Juan Perón returns to power in Argentina.
• October 20 » "Saturday Night Massacre": United States President Richard Nixon fires U.S. Attorney General Elliot Richardson and Deputy Attorney General William Ruckelshaus after they refuse to fire special prosecutor Archibald Cox, who is finally fired by Robert Bork.
• December 15 » The American Psychiatric Association votes 13–0 to remove homosexuality from its official list of psychiatric disorders, the DSM-II.

The temperature on September 23, 1973 was between 6.1 °C and 14.7 °C and averaged 9.6 °C. There was 1.5 mm of rain during 0.9 hours. There was 2.2 hours of sunshine (18%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast.