The temperature on June 5, 1911 was between 11.6 °C and 26.8 °C and averaged 19.5 °C. There was 12.1 hours of sunshine (73%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
September 29 » Italy declares war on the Ottoman Empire.
November 1 » World's first combat aerial bombing mission takes place in Libya during the Italo-Turkish War. Second Lieutenant Giulio Gavotti of Italy drops several small bombs.
Day of marriage May 16, 1934
The temperature on May 16, 1934 was between 4.9 °C and 14.1 °C and averaged 9.0 °C. There was 4.3 mm of rain during 4.1 hours. There was 0.1 hours of sunshine (1%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 23 » Leopold III becomes King of Belgium.
March 24 » United States Congress passes the Tydings-McDuffie Act, allowing the Philippines to become a self-governing commonwealth.
April 12 » The strongest surface wind gust in the world at the time of 231mph, is measured on the summit of Mount Washington, New Hampshire. It has since been surpassed.
June 30 » The Night of the Long Knives, Adolf Hitler's violent purge of his political rivals in Germany, takes place.
September 22 » The Gresford disaster in Wales kills 266 miners and rescuers.
December 11 » Bill Wilson, co-founder of Alcoholics Anonymous, takes his last drink and enters treatment for the final time.
Day of death May 8, 1979
The temperature on May 8, 1979 was between 5.6 °C and 16.6 °C and averaged 11.0 °C. There was 11.4 hours of sunshine (75%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
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.
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/I135852.php : accessed October 21, 2026), "Sietske van der Wal (1911-1979)".
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