About the day » Tuesday May 21, 1968Calender converter

• Albert van der Knokke, Utrecht (NL) († 1986)
• Henriëtte Catharina Judith Vroom, Amsterdam († 1982)
• Jason Roger BUMA, Salt Lake City Salt Lake County Utah U.S.A († 2015)
• Gerlinde Tuijp († 2014)
• Wendy Johanna Maria Bernardina Lambregts, Breda, Noord-Brabant, Nederland († 2016)
• David James Federowicz, New Jersey, Verenigde Staten († 1994)
• Thomas Alexander Gébel, Amsterdam, Noord-Holland, Nederland († 1994)
• Frank van Schaik, Utrecht
• Sandra Lee Caulder, Davidson CoNorth Carolina († 1994)
• Jerry Lee Renning († 1968)

• Adrianus de Leeuw (86), Maasdriel, Gemeente Maasdriel, Gelderland, Nederland
• Alonzo Thomas Chambers (77), Pueblo, Colorado, United States
• Anna van der Splinter (83), Lisse, Zuid-Holland, Nederland
• Aart Valk (63), Hendrik-Ido-Ambacht, Zuid-Holland, Nederland
• August SPELEERS (94), Harelbeke-Stacegem
• Anna Maria Witteman (95)
• Aaltje Stokroos (92), Doezum, gem. Grootegast, Groningen, Nederland
• Arie Hartevelt (76), Leiden, Zuid-Holland, Nederland
• Anna Maria Bredek (73), Ter-Apel
• Anna Geertruida Bruntink (69), Winterswijk, Gelderland, Nederland

• 1966 » Lisa Edelstein, American actress and playwright
• 1967 » Chris Benoit, Canadian professional wrestler († 2007)
• 1968 » Ilmar Raag, Estonian director, producer, and screenwriter
• 1968 » Julie Vega, Filipino actress and singer († 1985)
• 1968 » Matthias Ungemach, German-Australian rower
• 1969 » Brian Statham, Rhodesian born English footballer, defender and manager
• 1969 » George LeMieux, American lawyer and politician
• 1969 » Georgiy Gongadze, Georgian-Ukrainian journalist and director († 2000)
• 1969 » Masayo Kurata, Japanese voice actress and singer
• 1969 » Pierluigi Brivio, Italian footballer

• 1956 » Harry Bensley, English businessman and adventurer (b. 1877)
• 1957 » Alexander Vertinsky, Ukrainian-Russian singer-songwriter, actor, and poet (b. 1889)
• 1964 » James Franck, German physicist and academic, Nobel Prize laureate (b. 1882)
• 1965 » Geoffrey de Havilland, English pilot and engineer, designed the de Havilland Mosquito (b. 1882)
• 1965 » Marguerite Bise, French chef (b. 1898)
• 1968 » Doris Lloyd, English actress (b. 1896)
• 1970 » E. L. Grant Watson, English-Australian biologist and author (b. 1885)
• 1973 » Ivan Konev, Soviet Marshal and general (b. 1897)
• 1973 » Vaughn Monroe, American singer, trumpet player, bandleader, and actor (b. 1911)
• 1981 » Raymond McCreesh, PIRA volunteer (b. 1957)

• 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 5, 1967 to Tuesday, July 6, 1971 the cabinet De Jong, with P.J.S. de Jong (KVP) as prime minister.
• The Netherlands had about 12.7 million citizens.
• January 21 » Vietnam War: Battle of Khe Sanh: One of the most publicized and controversial battles of the war begins.
• January 22 » Apollo 5 lifts off carrying the first Lunar module into space.
• February 1 » Vietnam War: The execution of Viet Cong officer Nguyễn Văn Lém by South Vietnamese National Police Chief Nguyễn Ngọc Loan is recorded on motion picture film, as well as in an iconic still photograph taken by Eddie Adams.
• March 21 » Battle of Karameh in Jordan between the Israel Defense Forces and the combined forces of the Jordanian Armed Forces and PLO.
• April 7 » Motor racing world champion Jim Clark is killed in an accident during a Formula Two race at Hockenheim.
• September 6 » Swaziland becomes independent.

The temperature on May 21, 1968 was between 6.8 °C and 12.1 °C and averaged 9.5 °C. There was -0.1 hours of sunshine (0%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast.