January 30 » The first Anglo-Japanese Alliance is signed in London.
March 6 » Real Madrid CF is founded.
April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
April 18 » The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800–2,000.
April 20 » Pierre and Marie Curie refine radium chloride.
December 14 » The Commercial Pacific Cable Company lays the first Pacific telegraph cable, from San Francisco to Honolulu.
Day of death April 4, 1973
The temperature on April 4, 1973 was between -3.1 °C and 7.6 °C and averaged 3.3 °C. There was 1.5 mm of rain during 2.3 hours. There was 0.2 hours of sunshine (2%). The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
April 2 » Launch of the LexisNexis computerized legal research service.
August 5 » Mars 6 is launched from the USSR.
August 9 » Mars 7 is launched from the USSR.
September 11 » JAT Airways Flight 769 crashes into the Maganik mountain range while on approach to Titograd Airport, killing 35 passengers and six crew.
October 8 » Spyros Markezinis begins his 48-day term as prime minister in an abortive attempt to lead Greece to parliamentary rule.
November 17 » The Athens Polytechnic uprising against the military regime ends in a bloodshed in the Greek capital.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I169948.php : accessed October 14, 2026), "Egbert van der Wal (1902-1973)".
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