About the day » Wednesday April 20, 1966Calender converter

• Pieter Hendrik Bakker († 2016)
• Erwin Kamp, Hengelo († 2024)
• Nelleke de Visser, Katwijk, Zuid-Holland, Nederland († 1975)
• John Kouseband Kouseband, Nederland
• Maatje Verbeek, Ede († 1982)

• AUGUSTINUS VAN DEN BRANDEN (69), LOKEREN,OOST-VLAANDEREN,BELGIE
• Adriana van de Klundert (60), Roosendaal
• Arend Hendriks Algra (38), Huizum
• Andries Nederhoed (80), Groningen,, Groningen, Nederland
• Catharina Dimphna Antonia Voeten (69), Breda
• Catharina Heslinga (55), Apeldoorn
• Cornelis VANHEMEL (78)
• Aline Hélène Joseph GUFFROY (86), Gonnehem,62376,Pas-de-Calais,Nord-Pas-de-Calais,FRANCE
• Derk Jan Dalhuisen (77), Wenum(Gem.Apeldoorn)
• Bendina Maria Kaal (99)

• 1964 » Crispin Glover, American actor
• 1965 » Adrián Fernández, Mexican race car driver
• 1965 » Kostis Chatzidakis, Greek politician, Ministry of Economy, Infrastructure, Shipping and Tourism
• 1965 » Léa Fazer, Swiss film director, screenwriter and actress
• 1965 » Rebecca Lacey, English actress
• 1966 » David Chalmers, Australian philosopher and academic
• 1966 » David Filo, American businessman, co-founded Yahoo!
• 1966 » Vincent Riendeau, Canadian ice hockey player
• 1967 » Mike Portnoy, American drummer and songwriter
• 1967 » Raymond van Barneveld, Dutch darts player

• 1946 » Mae Busch, Australian actress (b. 1891)
• 1947 » Christian X of Denmark (b. 1870)
• 1951 » Ivanoe Bonomi, Italian politician, 25th Prime Minister of Italy (b. 1873)
• 1961 » Ado Vabbe, Estonian painter (b. 1892)
• 1967 » Léo-Paul Desrosiers, Canadian journalist and author (b. 1896)
• 1968 » Rudolph Dirks, German-American illustrator (b. 1877)
• 1969 » Vjekoslav Luburić, Croatian Ustaše official and concentration camp administrator (b. 1914)
• 1980 » M. Canagaratnam, Sri Lankan politician (b. 1924)
• 1982 » Archibald MacLeish, American poet, playwright, and lawyer (b. 1892)
• 1986 » Sibte Hassan, Pakistani journalist, scholar, and activist (b. 1916)

1. Jan
2. Johannes
3. Peter
4. Hendrik
5. Robert
6. Cornelis
7. John
8. Pieter
9. Paul
10. Ronald
11. Marcel
12. Willem
13. Johan
14. Jacob
15. David
16. Richard

1. Maria
2. Johanna
3. Monique
4. Anna
5. Petra
6. Ingrid
7. Jolanda
8. Elisabeth
9. Yvonne
10. Cornelia
11. Petronella
12. Anita
13. Jacqueline
14. Catharina
15. Sandra
16. Karin

• 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 14, 1965 to November 22, 1966 the cabinet Cals, with Mr. J.M.L.Th. Cals (KVP) as prime minister.
• In The Netherlands , there was from November 22, 1966 to April 5, 1967 the cabinet Zijlstra, with Prof. dr. J. Zijlstra (ARP) as prime minister.
• The Netherlands had about 12.4 million citizens.
• January 31 » The Soviet Union launches the unmanned Luna 9 spacecraft as part of the Luna program.
• March 17 » Off the coast of Spain in the Mediterranean, the DSVAlvin submarine finds a missing American hydrogen bomb.
• June 14 » The Vatican announces the abolition of the Index Librorum Prohibitorum ("index of prohibited books"), which was originally instituted in 1557.
• July 1 » The first color television transmission in Canada takes place from Toronto.
• September 6 » Prime Minister Hendrik Verwoerd, the architect of apartheid, is stabbed to death in Cape Town, South Africa during a parliamentary meeting.
• September 16 » The Metropolitan Opera House opens at Lincoln Center in New York City with the world premiere of Samuel Barber's opera Antony and Cleopatra.

The temperature on April 20, 1966 was between 4.0 °C and 10.1 °C and averaged 6.3 °C. There was 3.7 mm of rain during 3.5 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest.