The temperature on May 31, 1931 was between 8.7 °C and 15.9 °C and averaged 12.6 °C. There was 7.1 mm of rain during 3.5 hours. There was 2.2 hours of sunshine (13%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 21 » Sir Isaac Isaacs is sworn in as the first Australian-born Governor-General of Australia.
March 19 » Gambling is legalized in Nevada.
March 23 » Bhagat Singh, Shivaram Rajguru and Sukhdev Thapar are hanged for the killing of a deputy superintendent of police during the Indian independence movement.
July 1 » Wiley Post and Harold Gatty become the first people to circumnavigate the globe in a single-engined monoplane aircraft.
October 1 » The George Washington Bridge in the United States, linking New Jersey and New York, is opened.
October 21 » A secret society in the Imperial Japanese Army launches an abortive coup d'état attempt.
Day of death April 22, 2011
The temperature on April 22, 2011 was between 9.2 °C and 26.3 °C and averaged 18.2 °C. There was 7.7 hours of sunshine (54%). The partly 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 Thursday, October 14, 2010 to Monday, November 5, 2012 the cabinet Rutte I, with Mark Rutte (VVD) as prime minister.
May 1 » Pope John Paul II is beatified by his successor, Pope Benedict XVI.
August 6 » War in Afghanistan: A United States military helicopter is shot down, killing 30 American special forces members and a working dog, seven Afghan soldiers, and one Afghan civilian. It was the deadliest single event for the United States in the War in Afghanistan.
October 31 » The global population of humans reaches seven billion. This day is now recognized by the United Nations as the Day of Seven Billion.
December 13 » A murder–suicide in Liège, Belgium, kills six and wounds 125 people at a Christmas market.
December 31 » NASA succeeds in putting the first of two Gravity Recovery and Interior Laboratory satellites in orbit around the Moon.
December 31 » Samoa and Tokelau skip the day of December 30, 2011 as they jump to the other side of International Date Line, changing their timezones.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I17835.php : accessed January 30, 2026), "Maria Hendrika Zwemer (1931-2011)".
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