January 31 » Czechoslav Trade Union Association is founded in Prague.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 30 » The British Colony of Natal annexes Zululand.
Day of death May 31, 1963
The temperature on May 31, 1963 was between 13.4 °C and 26.2 °C and averaged 20.4 °C. There was 14.4 hours of sunshine (88%). The almost cloudless was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
April 11 » Pope John XXIII issues Pacem in terris, the first encyclical addressed to all Christians instead of only Catholics, and which described the conditions for world peace in human terms.
May 2 » Berthold Seliger launches a rocket with three stages and a maximum flight altitude of more than 100 kilometres near Cuxhaven. It is the only sounding rocket developed in Germany.
May 25 » The Organisation of African Unity is established in Addis Ababa, Ethiopia.
June 21 » Cardinal Giovanni Battista Montini is elected as Pope Paul VI.
December 7 » Instant replay makes its debut during the Army-Navy football game in Philadelphia, Pennsylvania, United States.
December 22 » The cruise ship Lakonia burns 180 miles (290km) north of Madeira, Portugal with the loss of 128 lives.
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/I199565.php : accessed December 26, 2025), "Sophia Maria Smit (1897-1963)".
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