About the day » Tuesday April 12, 1921Calender converter

• Andrew Richard Nijdam, Montana, Verenigde Staten († 1994)
• Abraham Michels († 1941)
• Albertha Johanna van Gorp, Schiedam († 2014)
• Aloysius Cornelis Meijer, Amsterdam, Noord-Holland, Nederland († 2000)
• Anna Maria Diepstraten, Ginneken en Bavel († 1922)
• Annigje Vos, Emmer-Compascuum, Emmen († 2020)
• Adriana Catharina van Dueren den Hollander, Fijnaart († 1968)
• Alette Pietertje Cornelia Noordzij, Schiedam († 1921)
• Albert Benjamins, Hoensbroek († 1978)
• Arie Gerrit Stolk, Oostvoorne Z.H († 1968)

• Christina Maria Rawi (56), Amsterdam, Noord-Holland, Nederland
• Cornelis Pater (81), Woudenberg
• Antonia Carlos Stephanes (60), Campos Novos, Santa Catarina, Brasil
• Anna Sophia Werkmeester (77), Utrecht
• Cornelia Helena Molenbroek (36), 's-Gravenhage / den Haag, Zuid-Holland, Nederland
• Cornelis Govers (68), Wouw
• Christina Jacoba Mennens (1), Amsterdam, Noord-Holland, Netherlands
• Aaltje Lut (43), Kampen, Overijssel, Nederland
• Cornelis Pater (81), Woudenberg, Utrecht, Nederland
• Anna Maria Doffijn (41), Den Haag

• 1917 » Helen Forrest, American singer and actress († 1999)
• 1917 » Vinoo Mankad, Indian cricketer († 1978)
• 1919 » Billy Vaughn, American musician and bandleader († 1991)
• 1919 » István Anhalt, Hungarian-Canadian composer and educator († 2012)
• 1921 » Robert Cliche, Canadian lawyer, judge, and politician († 1978)
• 1922 » Simon Kapwepwe, Zambian politician, 2nd Vice President of Zambia († 1980)
• 1923 » Ann Miller, American actress, singer, and dancer († 2004)
• 1924 » Curtis Turner, American race car driver († 1970)
• 1924 » Peter Safar, Austrian physician and academic († 2003)
• 1924 » Raymond Barre, French economist and politician, Prime Minister of France († 2007)

• 1898 » Elzéar-Alexandre Taschereau, Canadian cardinal (b. 1820)
• 1902 » Marie Alfred Cornu, French physicist and academic (b. 1842)
• 1906 » Mahesh Chandra Nyayratna Bhattacharyya, Indian scholar, academic, and philanthropist (b. 1836)
• 1912 » Clara Barton, American nurse and humanitarian, founded the American Red Cross (b. 1821)
• 1933 » Adelbert Ames, American general and politician, 30th Governor of Mississippi (b. 1835)
• 1937 » Abdülhak Hâmid Tarhan, Turkish playwright and poet (b. 1852)
• 1938 » Feodor Chaliapin, Russian opera singer (b. 1873)
• 1943 » Viktor Puskar, Estonian colonel (b. 1889)
• 1945 » Franklin D. Roosevelt, American lawyer and politician, 32nd President of the United States (b. 1882)
• 1953 » Lionel Logue, Australian actor and therapist (b. 1880)

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

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

• 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 September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
• The Netherlands had about 6.9 million citizens.
• February 21 » Constituent Assembly of the Democratic Republic of Georgia adopts the country's first constitution.
• March 6 » Portuguese Communist Party is founded as the Portuguese Section of the Communist International.
• March 19 » Irish War of Independence: One of the biggest engagements of the war takes place at Crossbarry, County Cork. About 100 Irish Republican Army (IRA) volunteers escape an attempt by over 1,300 British forces to encircle them.
• May 3 » West Virginia becomes the first state to legislate a broad sales tax, but does not implement it until a number of years later due to enforcement issues.
• July 2 » World War I: U.S. President Warren G. Harding signs the Knox–Porter Resolution formally ending the war between the United States and Germany.
• July 11 » Former president of the United States William Howard Taft is sworn in as 10th chief justice of the U.S. Supreme Court, becoming the only person ever to hold both offices.

The temperature on April 12, 1921 was between 3.8 °C and 18.1 °C and averaged 11.3 °C. There was 12.0 hours of sunshine (88%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast.