About the day » Wednesday April 21, 1943Calender converter

• Gerard Lupko Theisens, De Krim († 2022)
• N.N. Hendrickx, Swalmen († 1943)
• Jozef Guillaume Ghislaine Pluymers, Rijkel, België († 2015)
• Jan Horsman, Lisse NL († 2010)
• levenloos geboren kind († 1943)
• Eugene Randal Platt, Los Angeles-California (USA) († 2018)
• Jacob Aukes Vogelzang, Kollumerzwaag († 1998)
• Louw Weerstand († 1944)
• Jan de Graaff, Den Haag († 2014)
• Ambrosius Antonius Maria van Stratum, Asten

• Broertje de Roy (4), Princenhage,, Noord-Brabant, Nederland
• Augusta Dunger (84), Commerce, Scott, Missouri, Verenigde Staten
• Antje Boer (59), Leiden, Netherlands
• Adrianus Petrus Suijkerbuijk (28), Biggekerke, Zeeland, Nederland
• Adrianus Stekelenburg (63), Utrecht, Nederland
• Andreas Petrus Van Der Merwe (39), Johannesburg, Transvaal, South Africa
• Adrianus Suijkerbuijk (96), Biggekerke, Nederland
• Benedito Novaes (54), Campinas, São Paulo, Brasil
• Beert Lam (1), Harderwijk, Gelderland, Nederland
• Adrianus Petrus Suijkerbuijk, Biggekerke (Nederland)

• 1939 » John McCabe, English pianist and composer († 2015)
• 1939 » Reni Santoni, American actor
• 1939 » Sister Helen Prejean, American nun, activist, and author
• 1940 » Jacques Caron, Canadian ice hockey player and coach
• 1940 » Souleymane Cissé, Malian director, producer, and screenwriter
• 1941 » David L. Boren, American lawyer and politician, 21st Governor of Oklahoma
• 1942 » Geoffrey Palmer, New Zealand politician, 33rd Prime Minister of New Zealand
• 1945 » Diana Darvey, English actress, singer and dancer († 2000)
• 1945 » Mark Wainberg, Canadian researcher and HIV/AIDS activist († 2017)
• 1945 » Srinivasaraghavan Venkataraghavan, Indian cricketer and umpire

• 1930 » Robert Bridges, English poet and author (b. 1844)
• 1932 » Friedrich Gustav Piffl, Bohemian cardinal (b. 1864)
• 1938 » Muhammad Iqbal, Indian-Pakistani philosopher and poet (b. 1877)
• 1941 » Fritz Manteuffel, German gymnast (b. 1875)
• 1945 » Walter Model, German field marshal (b. 1891)
• 1946 » John Maynard Keynes, English economist and philosopher (b. 1883)
• 1948 » Aldo Leopold, American ecologist and author (b. 1887)
• 1952 » Leslie Banks, American actor, director and producer (b. 1890)
• 1954 » Emil Leon Post, Polish-American mathematician and logician (b. 1897)
• 1956 » Charles MacArthur, American playwright and screenwriter (b. 1895)

1. Johannes
2. Jan
3. Cornelis
4. Hendrik
5. Willem
6. Gerrit
7. Pieter
8. Petrus
9. Jacobus
10. Arie
11. Robert
12. Adrianus
13. Wilhelmus
14. Jacob
15. Gerardus
16. Antonius

1. Maria
2. Johanna
3. Anna
4. Cornelia
5. Elisabeth
6. Wilhelmina
7. Hendrika
8. Catharina
9. Adriana
10. Petronella
11. Margaretha
12. Jacoba
13. Geertruida
14. Aaltje
15. Helena
16. Alida

• Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
• The Netherlands had about 9.1 million citizens.
• July 10 » World War II: Operation Husky begins in Sicily.
• August 1 » World War II: Operation Tidal Wave also known as "Black Sunday", was a failed American attempt to destroy Romanian oil fields.
• September 6 » Pennsylvania Railroad's premier train derails at Frankford Junction in Philadelphia, killing 79 people and injuring 117 others.
• September 12 » World War II: Benito Mussolini is rescued from house arrest by German commando forces led by Otto Skorzeny.
• September 14 » World War II: The Wehrmacht starts a three-day retaliatory operation targeting several Greek villages in the region of Viannos, whose death toll would eventually exceed 500 persons.
• December 30 » Subhas Chandra Bose raises the flag of Indian independence at Port Blair.

The temperature on April 21, 1943 was between 4.6 °C and 18.8 °C and averaged 13.0 °C. There was 10.1 hours of sunshine (71%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the east-southeast.