About the day » Sunday April 20, 1980Calender converter

• Rick Oosterholt, Lichtenvoorde
• Christina Marjolein Hulzebosch, Ridderkerk († 2020)

• Bernarda Henrika Maria Bloemen (91), Veghel
• Arthur Brodie Brown (81), Sumner, Tennessee, Verenigde Staten
• Alfred Austin (88), Inverell, NSW, Australia
• Berend Watermulder (85)
• Adriana Catharina Sebregts (77), Kaatsheuvel, Noord-Brabant, Nederland
• Anne van den Bos (79), Oss
• Anna Meyer (75)
• August Nuyts (86), Mortsel
• Baptist Cornelius Maria Deliën (68), Tilburg
• Aaltje Bruggink (97)

• 1979 » Ludovic Magnin, Swiss footballer and coach
• 1979 » Nate Marquardt, American mixed martial artist
• 1979 » Stian Barsnes-Simonsen, Norwegian actor and television host
• 1980 » Gunta Baško, Latvian basketball player
• 1980 » Jasmin Wagner, German singer and actress
• 1980 » Sunaina Sunaina, Indian weightlifter
• 1982 » Dario Knežević, Croatian footballer
• 1982 » Jacqueline Govaert, Dutch singer-songwriter and pianist
• 1983 » Danny Granger, American basketball player
• 1983 » Miranda Kerr, Australian model

• 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)
• 1991 » Don Siegel, American director and producer (b. 1912)
• 1991 » Steve Marriott, English singer-songwriter and producer (b. 1947)
• 1992 » Benny Hill, English comedian, actor, and screenwriter (b. 1924)
• 1992 » Marjorie Gestring, American springboard diver (b. 1922)

• 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)
• Koningin Beatrix (Huis van Oranje-Nassau) was from April 30, 1980 till April 30, 2013 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
• The Netherlands had about 14.1 million citizens.
• March 27 » The Norwegian oil platform Alexander L. Kielland collapses in the North Sea, killing 123 of its crew of 212.
• March 31 » The Chicago, Rock Island and Pacific Railroad operates its final train after being ordered to liquidate its assets because of bankruptcy and debts owed to creditors.
• April 9 » The Iraqi regime of Saddam Hussein kills philosopher Muhammad Baqir al-Sadr and his sister Bint al-Huda after three days of torture.
• April 30 » The Iranian Embassy siege begins in London.
• September 5 » The Gotthard Road Tunnel opens in Switzerland as the world's longest highway tunnel at 10.14 miles (16.32km) stretching from Göschenen to Airolo.
• October 10 » The 7.1 M_w  El Asnam earthquake shakes northern Algeria, killing 2,633 and injuring 8,369.

The temperature on April 20, 1980 was between 0.9 °C and 9.1 °C and averaged 5.3 °C. There was 5.9 mm of rain during 3.1 hours. There was 5.4 hours of sunshine (38%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest.