About the day » Wednesday September 23, 1970Calender converter

• Edwin William de Graaf, Amsterdam, Noord-Holland, Nederland
• Jerome Paul Ruedisueli († 1970)
• Sandra Ann (Sandy) Decker, Kandiyohi, MN
• Froukje Connie (Simons) van der Meer, Ingelum, Fryslân, Nederlân († 2022)
• Mirjam Heite, Wanneperveen († 1977)
• Irvingh Guilaume Zichterman, Paramaribo, Suriname
• Sandra Stevens, Nijmegen († 1971)
• Hilona Gravers
• Daniel Frederick Tulen
• wilhelmina (wilma) nijssen, helden-dorp

• Cornelis (Cor) Bankersen (77), Alkmaar
• Aaltje Groenbroek (66), Den Helder, Noord-Holland, Nederland
• Cornelis Lambertus Maria (Kees) Post (10)
• Anne Marie Krützen (71)
• Cornelis Stam (64)
• Arthur S Holland (53), Frost, Faribault Co., MN
• Cornelia Johanna Beek (79), Well, Li.NL
• Albert Jan Walgemoet (67), Doetinchem
• Christiaan Emilius Luwel (83), Wintershoven
• Albert Mol (64), Groningen

• 1969 » Donald Audette, Canadian ice hockey player
• 1969 » Jan Suchopárek, Czech footballer and manager
• 1969 » Patrick Fiori, French singer-songwriter
• 1969 » Rod Pampling, Australian golfer
• 1969 » Tapio Laukkanen, Finnish race car driver
• 1970 » Adrian Brunker, Australian rugby player
• 1970 » Ani DiFranco, American singer-songwriter and guitarist
• 1970 » Giorgos Koltsidas, Greek footballer
• 1970 » Lucia Cifarelli, American singer-songwriter and keyboard player
• 1971 » Moin Khan, Pakistani cricketer and coach

• 1958 » Jacob Nicol, Canadian publisher, lawyer, and politician (b. 1876)
• 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)

• 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 April 5, 1967 to Tuesday, July 6, 1971 the cabinet De Jong, with P.J.S. de Jong (KVP) as prime minister.
• The Netherlands had about 13.0 million citizens.
• January 5 » The 7.1 M_w  Tonghai earthquake shakes Tonghai County, Yunnan province, China, with a maximum Mercalli intensity of X (Extreme). Between 10,000 and 15,000 people are known to have been killed and about another 26,000 are injured.
• March 21 » The first Earth Day proclamation is issued by Joseph Alioto, Mayor of San Francisco.
• April 8 » Bahr El-Baqar primary school bombing: Israeli bombers strike an Egyptian school. Forty-six children are killed.
• May 15 » Philip Lafayette Gibbs and James Earl Green are killed at Jackson State University by police during student protests.
• August 24 » Vietnam War protesters bomb Sterling Hall at the University of Wisconsin–Madison, leading to an international manhunt for the perpetrators.
• November 12 » The 1970 Bhola cyclone makes landfall on the coast of East Pakistan becoming the deadliest tropical cyclone in history.

The temperature on September 23, 1970 was between 5.1 °C and 16.6 °C and averaged 10.4 °C. There was 6.1 hours of sunshine (50%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast.