About the day » Saturday April 21, 1906Calender converter

• * Antonia Hendrika Petronella Schalke, Tilburg († 1949)
• - Doodgeboren - van Galen, Voorthuizen, Gelderland, Nederland († 1906)
• Adolfus Hendericus Voorloop, Amsterdam, Noord-Holland, Netherlands († 1972)
• Adrianus Hogewoning, Rijnsburg († 1906)
• Andries de Lange, Velsen († 1906)
• Aleida Geertruida van den Berg, Nieuwleusen, Dalfsen, Overijssel, Nederland († 1990)
• Hoogeveen, den Haag († 1906)
• - doodgeboren - van Galen, Voorthuizen, Gelderland, Nederland († 1906)
• Maas, Loon op Zand, Noord-Brabant, Nederland
• Schoenmaker, Voorst, Gelderland, Nederland († 1906)

• Anna Therese Armour Ghislaine van Montpellier d'Annevoie (98), Achêne, Namen, Wallonië
• Antonie van den Eijnden (70), Mierlo
• Aleida Rouwendal 9 (70)
• Jonkman Willem (68), Hoogeveen
• Antonie van den Eijnden (70), Mierlo
• "Anne" Thérèse Amour Ghislaine de Montpellier d'Annevoie (98), château d'Onthaine, Achêne, Ciney, Belgique
• Anna Dieters (73), Gieten, Drenthe, Nederland
• Anna Maria Carolina Peeters (26), Alken, België
• Abel Tjallings Waterbolk (51), Groningen, NL-GR
• Adriana Maria Nuijten (74), Etten-Leur

• 1899 » Randall Thompson, American composer and academic († 1984)
• 1903 » Luis Saslavsky, Argentinian director, producer, and screenwriter († 1995)
• 1904 » Jean Hélion, French painter († 1987)
• 1904 » Odilo Globocnik, Italian-Austrian SS officer († 1945)
• 1905 » Pat Brown, American lawyer and politician, 32nd Governor of California († 1996)
• 1911 » Ivan Combe, American businessman, developed Clearasil († 2000)
• 1911 » Kemal Satır, Turkish physician and politician († 1991)
• 1912 » Eve Arnold, Russian-American photojournalist († 2012)
• 1912 » Marcel Camus, French director and screenwriter († 1982)
• 1913 » Norman Parkinson, English photographer († 1990)

• 1900 » Vikramatji Khimojiraj, Indian ruler (b. 1819)
• 1910 » Mark Twain, American novelist, humorist, and critic (b. 1835)
• 1918 » Manfred von Richthofen, German captain and pilot (b. 1892)
• 1924 » Eleonora Duse, Italian actress (b. 1858)
• 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)

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

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

• 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 August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
• The Netherlands had about 5.5 million citizens.
• April 7 » Mount Vesuvius erupts and devastates Naples.
• April 8 » Auguste Deter, the first person to be diagnosed with Alzheimer's disease, dies.
• September 5 » The first legal forward pass in American football is thrown by Bradbury Robinson of St. Louis University to teammate Jack Schneider in a 22–0 victory over Carroll College (Wisconsin).
• September 7 » Alberto Santos-Dumont flies his 14-bis aircraft at Bagatelle, France for the first time successfully.
• December 4 » Alpha Phi Alpha the first black intercollegiate Greek lettered fraternity was founded at Cornell University in Ithaca, New York.
• December 24 » Radio: Reginald Fessenden transmits the first radio broadcast; consisting of a poetry reading, a violin solo, and a speech.

The temperature on April 21, 1906 was between 6.4 °C and 14.9 °C and averaged 10.4 °C. There was 4.5 hours of sunshine (32%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest.