The temperature on October 5, 1910 was between 12.1 °C and 16.7 °C and averaged 14.0 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
March 28 » Henri Fabre becomes the first person to fly a seaplane, the Fabre Hydravion, after taking off from a water runway near Martigues, France.
June 17 » Aurel Vlaicu pilots an A. Vlaicu nr. 1 on its first flight.
September 22 » The Duke of York's Picture House opens in Brighton, now the oldest continually operating cinema in Britain.
October 14 » English aviator Claude Grahame-White lands his aircraft on Executive Avenue near the White House in Washington, D.C.
November 10 » The date of Thomas A. Davis' opening of the San Diego Army and Navy Academy, although the official founding date is November 23, 1910.
December 21 » An underground explosion at the Hulton Bank Colliery No. 3 Pit in Over Hulton, Westhoughton, England, kills 344 miners.
Day of marriage September 6, 1939
The temperature on September 6, 1939 was between 10.7 °C and 23.1 °C and averaged 16.6 °C. There was 0.1 mm of rain. There was 8.0 hours of sunshine (60%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
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.
April 10 » Alcoholics Anonymous, A.A.'s "Big Book", is first published.
April 20 » Adolf Hitler's 50th birthday's celebrations in Germany
April 30 » The 1939–40 New York World's Fair opens.
August 15 » The Wizard of Oz premieres at Grauman's Chinese Theater in Los Angeles, California.
September 2 » World War II: Following the start of the invasion of Poland the previous day, the Free City of Danzig (now Gdańsk, Poland) is annexed by Nazi Germany.
December 13 » World War II: Battle of the River Plate: Captain Hans Langsdorff of the German Deutschland-class cruiser (pocket battleship) Admiral Graf Spee engages with Royal Navy cruisers HMSExeter, HMSAjax and HMSAchilles.
Day of death June 14, 1989
The temperature on June 14, 1989 was between 12.7 °C and 27.3 °C and averaged 20.6 °C. There was 12.9 hours of sunshine (77%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
April 9 » Tbilisi massacre: an anti-Soviet peaceful demonstration and hunger strike in Tbilisi, demanding restoration of Georgian independence, is dispersed by the Soviet Army, resulting in 20 deaths and hundreds of injuries.
April 21 » Tiananmen Square protests of 1989: In Beijing, around 100,000 students gather in Tiananmen Square to commemorate Chinese reform leader Hu Yaobang.
May 20 » The Chinese authorities declare martial law in the face of pro-democracy demonstrations, setting the scene for the Tiananmen Square massacre.
June 4 » Solidarity's victory in the first (somewhat) free parliamentary elections in post-war Poland sparks off a succession of peaceful anti-communist revolutions in Eastern Europe, leads to the creation of the so-called Contract Sejm and begins the Autumn of Nations.
June 24 » Jiang Zemin succeeds Zhao Ziyang to become the General Secretary of the Communist Party of China after the Tiananmen Square protests of 1989.
November 17 » Cold War: Velvet Revolution begins: In Czechoslovakia, a student demonstration in Prague is quelled by riot police. This sparks an uprising aimed at overthrowing the communist government (it succeeds on December 29).
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I13700.php : accessed February 17, 2026), "Gerrit (Gerrit ) Zwep (1910-1989)".
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