The temperature on June 30, 1904 was between 5.1 °C and 22.6 °C and averaged 14.9 °C. There was 14.0 hours of sunshine (84%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
January 7 » The distress signal "CQD" is established only to be replaced two years later by "SOS".
February 28 » S.L. Benfica is founded in Portugal.
April 30 » The Louisiana Purchase Exposition World's Fair opens in St. Louis, Missouri.
June 16 » Irish author James Joyce begins a relationship with Nora Barnacle and subsequently uses the date to set the actions for his novel Ulysses; this date is now traditionally called "Bloomsday".
August 10 » Russo-Japanese War: The Battle of the Yellow Sea between the Russian and Japanese battleship fleets takes place.
October 27 » The first underground New York City Subway line opens, later designated as the IRT Broadway–Seventh Avenue Line.
Day of marriage May 4, 1940
The temperature on May 4, 1940 was between 11.5 °C and 19.0 °C and averaged 14.6 °C. There was 3.9 hours of sunshine (26%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
July 10 » World War II: Six days before Adolf Hitler issues his Directive 16 to the combined Wehrmacht armed forces for Operation Sea Lion, the Kanalkampf shipping attacks against British maritime convoys begin, in the leadup to initiating the Battle of Britain.
July 10 » World War II: The Vichy government is established in France.
August 19 » First flight of the B-25 Mitchell medium bomber.
September 19 » World War II: Witold Pilecki is voluntarily captured and sent to Auschwitz to smuggle out information and start a resistance movement.
October 1 » The Pennsylvania Turnpike, often considered the first superhighway in the United States, opens to traffic.
October 14 » World War II: The Balham underground station disaster kills sixty-six people during the London Blitz.
Day of death September 30, 1997
The temperature on September 30, 1997 was between 13.5 °C and 19.4 °C and averaged 16.2 °C. There was 6.9 mm of rain during 6.0 hours. There was 0.9 hours of sunshine (8%). The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
January 17 » Cape Canaveral Air Force Station: A Delta II carrying the GPS IIR-1 satellite explodes 13 seconds after launch, dropping 250 tons of burning rocket remains around the launch pad.
April 1 » Comet Hale–Bopp is seen passing at perihelion.
April 18 » The Red River flood begins and soon overwhelms the city of Grand Forks, North Dakota. Fire breaks out and spreads in downtown Grand Forks, but high water levels hamper efforts to reach the fire, leading to the destruction of 11 buildings.
July 1 » China resumes sovereignty over the city-state of Hong Kong, ending 156 years of British colonial rule. The handover ceremony is attended by British Prime Minister Tony Blair, Charles, Prince of Wales, Chinese President Jiang Zemin, and U.S. Secretary of State Madeleine Albright.
December 15 » Tajikistan Airlines Flight 3183 crashes in the desert near Sharjah, United Arab Emirates, killing 85.
December 22 » Acteal massacre: Attendees at a prayer meeting of Roman Catholic activists for indigenous causes in the small village of Acteal in the Mexican state of Chiapas are massacred by paramilitary forces.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I3243.php : accessed March 5, 2026), "Jarig Hettinga (1904-1997)".
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