About the day » Monday May 11, 1981Calender converter

• Jan Eduard Alexander Mortelmans, Antwerpen († 1999)

• André Soetekouw (29), Nijmegen
• Anna Catharina Coenjaerts (85), Neerpelt
• Aagje Zwart (63), Egmond aan Zee (gem. Bergen, NH)
• Adof Pieter [Dolf] van Saus (67), Schoorl
• Cornelia Lena Kroon (83), Ter Aar
• Adriana F. Waterman (15)
• Anna Maria Ermens (52), Calgary, Alberta(Canada)
• Adolf van Nol (74), Amsterdam
• Aaf Plat (90), Volendam, Nederland
• Adolf, Pieter van Saus (67), Schoorl, Noord-Holland, Nederland

• 1976 » Kardinal Offishall, American rapper and record producer/executive
• 1977 » Bobby Roode, Canadian professional wrestler
• 1977 » Pablo Gabriel García, Uruguayan footballer
• 1977 » Victor Matfield, South African rugby player, coach, and sportscaster
• 1978 » Laetitia Casta, French model and actress
• 1982 » Cory Monteith, Canadian actor and singer († 2013)
• 1983 » Holly Valance, Australian actress, singer and model
• 1983 » Matt Leinart, American football player
• 1983 » Steven Sotloff, American-Israeli journalist († 2014)
• 1984 » Andrés Iniesta, Spanish footballer

• 1963 » Herbert Spencer Gasser, American physiologist and academic, Nobel Prize laureate (b. 1888)
• 1967 » James E. Brewton, American painter (b. 1930)
• 1979 » Lester Flatt, American singer-songwriter and guitarist (b. 1914)
• 1981 » Bob Marley, Jamaican singer-songwriter and guitarist (b. 1945)
• 1981 » Odd Hassel, Norwegian chemist and academic, Nobel Prize laureate (b. 1897)
• 1983 » Zenna Henderson, American writer (b. 1917)
• 1985 » Chester Gould, American cartoonist, created Dick Tracy (b. 1900)
• 1986 » Fritz Pollard, American football player and coach (b. 1894)
• 1988 » Kim Philby, British-Soviet double agent (b. 1912)
• 1994 » Timothy Carey, American actor, director, and producer (b. 1928)

1. Jan
2. Jeroen
3. Mark
4. Peter
5. Johannes
6. Michael
7. Hendrik
8. Maarten
9. Robert
10. Sander
11. David
12. Willem
13. Pieter
14. Dennis
15. Patrick
16. Paul

1. Maria
2. Linda
3. Kim
4. Esther
5. Marieke
6. Johanna
7. Anna
8. Jessica
9. Wendy
10. Suzanne
11. Jennifer
12. Judith
13. Sarah
14. Sandra
15. Laura
16. Elisabeth

• 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.
• In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
• The Netherlands had about 14.2 million citizens.
• February 13 » A series of sewer explosions destroys more than two miles of streets in Louisville, Kentucky.
• March 5 » The ZX81, a pioneering British home computer, is launched by Sinclair Research and would go on to sell over 1​⁄₂ million units around the world.
• April 27 » Xerox PARC introduces the computer mouse.
• May 21 » The Italian government releases the membership list of Propaganda Due, an illegal pseudo-Masonic lodge that was implicated in numerous Italian crimes and mysteries.
• August 19 » Gulf of Sidra Incident: United States fighters intercept and shoot down two Libyan Sukhoi Su-22 fighter jets over the Gulf of Sidra.
• November 23 » Iran–Contra affair: Ronald Reagan signs the top secret National Security Decision Directive 17 (NSDD-17), giving the Central Intelligence Agency the authority to recruit and support Contra rebels in Nicaragua.

The temperature on May 11, 1981 was between 14.5 °C and 25.4 °C and averaged 19.7 °C. There was 13.0 hours of sunshine (84%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east.